The Bacalar spearheads a return to coachbuilding by Bentley Mulliner and features an enhanced version of Bentley’s peerless 6.0-litre W12 TSI engine, the most advanced 12-cylinder engine in the world.

Since the first introduction of the twin-turbocharger W12 in 2003, the engine’s refinement has seen an increase of up to 27 percent in power, 38 percent in torque and a reduction of 38 percent in emissions.

This has been realised through the evolution and optimisation of the crankcase, improvements in the oil and cooling systems, twin-scroll turbocharging technology and more effective injection and combustion processes.

Sources from Bentley told this correspondent that these improvements resulted from several initiatives taken by the company. It may be recalled that the latest generation of W12 was launched in the Bentayga in 2016. “A thoroughly reworked engine included a crankcase 30 percent stronger than its predecessor, while the cylinder surfaces were coated to reduce friction and improve corrosion resistance. A low-alloy steel coating is applied to the bores using an Atmospheric Plasma Spray (APS) process. Improvements were also made to the cooling system, with the engine featuring three separate coolant circuits. The first is designed to bring the cylinder heads up to optimum operating temperature as quickly as possible for best engine performance and low emissions. The second cool the engine block and oil system, while the third handles the turbochargers’ thermal load. Each system has a dedicated water pump, allowing optimised individual control,” sources said.

Twin-scroll Turbocharging

Twin-scroll turbochargers minimise turbo response time and provide a more efficient exhaust package. The exhaust assemblies for the three front and three rear cylinders are separate from one another, which feed the twin-scroll impellers. The turbocharger housing is welded directly to the exhaust manifolds and feature integrated speed sensors, allowing the engine to monitor turbo performance for maximum efficiency.

Effective Injection

The W12 combines high-pressure direct fuel injection (200 bar injection pressure) with low-pressure port injection (six bar). The combination of these two systems maximises refinement, lowers particulate emissions and optimises power and torque delivery.

Interestingly, each W12 engine is hand-built over 6.5 hours by a team of 45 craftspeople before undertaking a highly sophisticated test regime of over an hour via three specialist diagnostic machines during the engines assemble.

According to the sources, there were three specialist diagnostic machines with sophisticated test regime.

Leak Test

The leakage test is conducted by pressurising each of the systems for fuel, oil and water individually. The different cavities are pressurised to values between 0.2 – 5.0 bar respectively and then measured whilst the pressure decays over time. The reduction in pressure versus time represents the quality of the sealing of the engine assembly. If the pressure drops faster than expected, a leak is indicated. A special fluid is sprayed on to the exterior of the engine to pin-point any leakage paths.

Cold Test

The engine is loaded on to a testbed plate, and connections are made to the engine loom and all engine systems, whilst a large electric motor couples to the engine via the crankshaft. “Motoring” the engine via the crankshaft allows the testbed to collect data from a suite of sensors. The facility measures 600 individual properties and characteristics of the engine during a 15-minute cycle. Due to the low running speed of 120 RPM for the test, finer details and any inconsistencies can be identified thanks to a sample rate that highlights even the briefest of anomalies that would be invisible if the engine was firing or running at speed. This fine detail analysis is also valuable for confirming the precise timing of the engine. Using positioning information from sensors on the crankshaft, crankcase and camshafts, and cylinder compression values, the Cold Test can confirm the engine timing is accurate and, therefore, achieve the best possible combustion cycle.

Hot Test

When the engine arrives for hot testing, a UV dye is added to the engine to help identify any leaks. The coolant and fuel system are pressurised with air and nitrogen, respectively, for a final check before introducing the necessary fluids ready for testing. The engine is cranked to build oil pressure before the ignition system is energised and then left to idle whilst the engine test technician listens for any refinement issues and checks for leaks with a UV lamp. Sources said that each W12 is then tested for a minimum of 21.5 minutes and runs up to 3,800 rpm with a maximum load of 300 Nm. One in every one hundred engines receives a full eight-hour power test, achieving 6,000 RPM, and must achieve 900Nm.

The three tests that the Bacalar engine has already been put through are part of Bentley’s exceptional quality control processes. These testing procedures provide feedback on the quality of each engine and provide multiple checkpoints to catalogue the exact behaviour of each engine from the moment of manufacture. Since the installation of the three testbeds in 2002, over 100,000 W12 engines have been handcrafted in Crewe and passed through the test facility.

Technology Advancements

Bentley’s legendary 6.0-litre twin-turbocharged W12, created in 2002, has evolved into the latest iteration of the W12 engine used across today’s current model range. The unique W-configuration means that the engine is 24 percent shorter than an equivalent V12, benefitting packaging and maximising usable cabin space.

The latest generation of W12 was launched in the Bentayga in 2016. A thoroughly reworked engine included a crankcase 30 percent stronger than its predecessor, while the cylinder surfaces were coated to reduce friction and improve corrosion resistance. A low-alloy steel coating is applied to the bores using an Atmospheric Plasma Spray (APS) process.

The W12 combines high-pressure direct fuel injection (200 bar injection pressure) with low-pressure port injection (six bar). The combination of these two systems maximises refinement, lowers particulate emissions and optimises power and torque delivery.

Twin-scroll turbochargers minimise turbo response time and provide a more efficient exhaust package. The exhaust assemblies for the three front and three rear cylinders are separate from one another, which then feed the twin-scroll impellers. The turbocharger housing is welded directly to the exhaust manifolds and feature integrated speed sensors, allowing the engine to monitor turbo performance for maximum efficiency.

Bentley’s variable displacement system shuts down half of the engine under defined conditions. Intake and exhaust valves, fuel injection and ignition are all shut down on defined cylinders, with the engine running as a six-cylinder for improved efficiency. The system will run in this mode in gears three to eight, below 3,000 rpm and up to 300 Nm torque output.

The first Bacalar engine followed the same build process in Bentley’s centre of excellence for W12 engines, ensuring the same level of quality and expertise before final testing, sources added. (MT)

Sustainable, Recyclable Electric Motors

Bentley Motors has announced a three-year research study that aims to revolutionise the sustainability of electric motors. Supporting Bentley’s commitment to offering only hybrid or electric vehicles by 2026, the result could see recycled rare-earth magnets used in selected ancillary motors for the very first time.

The study, titled RaRE (Rare-earth Recycling for E-machines), intends to build on work completed at the University of Birmingham in devising a method of extracting magnets from waste electronics. The project will also scale up this process and repurpose the extracted magnetic material into new recyclable magnets for use within bespoke ancillary motors.

Adding to the sustainability benefits that RaRE will provide, the bespoke motors created through this method promise to minimise complexity through manufacture while supporting the development of the UK supply chain for both mass production and low volume components.

Dr Matthias Rabe, Member of the Board for Engineering, Bentley Motors, said, “As we accelerate our journey to electrification, offering only hybrid or electric vehicles by 2026, and full electric by 2030, it is important that we focus on every aspect of vehicle sustainability, including sustainable methods of sourcing materials and components. RaRE promises a step-change in electrical recyclability, providing a source of truly bespoke, low voltage motors for a number of different applications, and we are confident the results will provide a basis for fully sustainable electric drives.”

This study will run in parallel to Bentley’s OCTOPUS research programme, which aims to deliver a breakthrough in e-axle electric powertrains, utilising a fully integrated, free from rare-earth magnet e-axle that supports electric vehicle architectures.

As with OCTOPUS, RaRE is an OZEV funded project delivered in partnership with Innovate UK, which brings together the following partners with distinct roles and responsibilities. Bentley Motors will lead specification setting and test protocol development and support the design and manufacturing activities, while Hypromag will scale up the recycling processes developed at the University of Birmingham and convert the extracted powders to sintered magnets with properties designed around those required for the auxiliary motors. On its part, Unipart Powertrain Applications Ltd will lead the development of manufacturing scale-up routes to ensure facilities and processes defined are suitable for volume automotive manufacture.

Advanced Electric Machines Research Ltd will lead the motors’ design and development, while Intelligent Lifecycle Solutions Ltd will pre-process computer hard disk drives to remove the rare earth magnet containing components from the waste, which will be shipped to Hypromag for removal of the rare earth magnets. The University of Birmingham will provide cast alloys, which will be fed into Hypromag to blend with secondary materials to produce sintered magnets. (MT)

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Vietnamese automotive company VinFast has announced the signing of Memoranda of Understanding (MOUs) with 29 aftersales partners during its Global Business Conference held between 4 May and 10 May 2026.

The event gathered over 200 investors and partners from North America, Europe, the Middle East, India, Indonesia, the Philippines and Kazakhstan to discuss the company’s international service expansion.

The MoUs outline plans for international partners to establish electric vehicle (EV) service workshops that adhere to VinFast’s global standards. To maintain service quality, VinFast intends to provide standardised technician training, certification programmes and operating procedures. The company is also developing a parts supply network with a target of delivering common spare parts within 24 hours in major markets.

The automaker is building on its domestic aftersales foundation in Vietnam, where it operated nearly 400 workshops by the end of 2025. This contributed to a total global network of nearly 800 facilities at that time.

For 2026, the company aims to expand its global reach to more than 1,100 service workshops. This network will be implemented through several models, including – dealerships for retail customers, services for fleet and transportation business clients and partnerships with third-party local service workshops.

The expansion strategy includes specific support policies such as repair time commitments in Vietnam and the provision of replacement vehicles in international markets. VinFast also provides ongoing technical support, battery inspections and software updates for its customers.

Bui Viet Hung, Deputy CEO of Global Aftersales at VinFast, said, “Our goal is not simply to expand the network, but to build a customer-centric aftersales ecosystem that delivers an outstanding experience on a global scale. Through partnerships with experienced local operators and the application of VinFast’s global standards, we aim to provide aftersales services that are exceptional, responsive, and reliable”.

In addition to maintenance services, VinFast is collaborating with partners like V-Green to develop a global charging system. The company aims to establish more than 1.5 million charging ports worldwide to provide a comprehensive ownership experience for international EV users.

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Mumbai-headquartered automotive major Tata Motors is upbeat on FY2027. The company reported revenue of INR 3,355 billion, down 9 percent YoY in FY2026, as compared to INR 3,660 billion a year ago. The profit before tax saw a decline of 13 percent at INR 2,333 billion, as against INR 3,142 billion last year.

The impact was primarily on the back of several headwinds at Jaguar Land Rover, including cyber incidents, tariffs, China's luxury tax, VME pressures and adverse commodities. The Consolidated Net Debt stood at INR 307 billion, on account of adverse free cash flows primarily owing to production stoppages at JLR.

However, Tata Motors management is quite optimistic about transitioning into the new fiscal year. Shailesh Chandra, Managing Director & CEO, Tata Motors Passenger Vehicles, outlined a ‘stay the course’ philosophy backed by aggressive technological pivots. Despite macroeconomic volatility, the company is doubling down on its multi-powertrain strategy to insulate itself from global commodity shocks.

While FY2026 was a year of ‘outperformance’ (15 percent growth), Chandra has set a realistic yet ambitious floor for the mid-term.

"We are confident growth can be over 10 percent for FY2027. There is no question about changing the long-term plan. Unless there is a significant geopolitical impact on petrol and diesel prices that may have a 1-2 percent plus or minus effect on new car sales, we remain on track," Chandra stated.

Perhaps the most significant outlook provided was the expected reversal of the traditional cost structure. Chandra views the rising cost of Internal Combustion Engines (ICE) as an inevitability that will eventually make EVs the more profitable segment.

Interestingly, for Tata Motors’ alternative energy fuel mix (electric and CNG) now already accounts for 43 percent of passenger vehicle sales.

"ICE is going to be inflationary in the future," Chandra predicted. "Cost on the EV side has been disinflationary. If not equal, it will be better than ICE. We are not that concerned on profitability being impacted badly; there can be some pressure in the short-term, but it maybe for completely different reasons," he responded on the demand in the upcoming few months.

The automaker is also ramping up production to meet demand and expects to build on the strong momentum of H2 FY2026, and continue to deliver profitable and industry-beating growth in FY2027, supported by a robust demand pipeline, planned pipeline of new products and established multi-powertrain strategy.

By December 2026 or early CY2027, Tata Motors plans to enter the Flex-Fuel arena with at least one product to align with evolving government mandates.

"As far as Tata Motors is concerned, we are comfortable in terms of technology readiness," Chandra noted. "By end-December 2026 or early next year, we expect our first Flex-Fuel vehicle to be introduced. We are currently in discussion with the government through SIAM for E25 readiness."

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Maruti Suzuki India Limited has crossed a new threshold in its environmental logistics strategy, having now sent more than three million vehicles across the country by rail. The carmaker views this cumulative figure as proof of its deepening commitment to reducing emissions through supply chain innovation.

The share of trains in the company’s outbound vehicle movement has grown from just five percent in the 2014-15 fiscal year to 26.5 percent in 2025-26. The journey from two million to three million rail dispatches took only 21 months, setting a company record for the fastest addition of one million units moved by train.

Two of Maruti Suzuki’s manufacturing hubs, at Hansalpur and Manesar, are equipped with in-plant railway sidings, a distinction held by no other passenger vehicle maker in India. These facilities were built under the national PM GatiShakti master plan. The Hansalpur siding became operational in March 2023 and received a virtual inauguration from Prime Minister Narendra Modi a year later. In February 2026, it earned global recognition as the first modal shift transport project registered under Verra’s carbon standards. The Manesar siding, the largest of its kind in the country, saw its first train flagged off in June 2025 by Union Minister Ashwini Vaishnaw and Haryana Chief Minister Nayab Singh Saini.

With a combined annual capacity of 750,000 vehicles, the two sidings feed a hub and spoke network covering more than 600 cities from 22 hubs. Popular models like the Swift, Brezza, Baleno, Grand Vitara and Ertiga, produced in Gurugram, Manesar and Gujarat, are moved through this system. Rail connectivity also extends to the ports of Mundra and Pipavav, supporting the company’s export shipments.

Hisashi Takeuchi, Managing Director & CEO, Maruti Suzuki, said, “Achieving three million cumulative vehicle dispatches through railways marks a significant milestone in Maruti Suzuki’s green logistics journey. Since 2014, our rail-based vehicle dispatches have increased ninefold in volume, now contributing 26.5 percent of the Company’s total vehicle dispatches. Maruti Suzuki has committed over INR 13,720 million towards dedicated green logistics infrastructure. This includes development of in-plant railway sidings at our Hansalpur and Manesar manufacturing facilities, rail yards setup at key logistics hubs, procurement of specialised automotive rakes and supporting multiple infrastructure upgrades.

 “We thank the Government of India for the visionary PM GatiShakti National Master Plan, which has created a strong enabling framework for integrated, multimodal logistics and has supported the industry’s transition towards efficient, rail-led and sustainable freight movement. Going forward, we aim to increase the share of rail-based vehicle dispatches to 35 percent by FY2030-31 and plan to establish an in-plant siding at our new Kharkhoda facility. This would further help reduce carbon footprint, lower fuel consumption and ease overall road congestion.”

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The 110th birthday of Ferruccio Lamborghini Cavaliere di Gran Croce OMRI, the famous Italian automobile designer and industrialist who created Lamborghini Trattori in 1948 and Automobili Lamborghini in 1963 was on 28 April 2026. The force behind the conceptualisation, design and development of some of the most iconic supercar models ever to come out of Italy, such as the Miura and Countach, Lamborghini was driven by an unceasing desire to improve and innovate. 
Born in Renazzo, a hamlet in the municipality of Cento (province of Ferrara), on 28 April 1916, Lamborghini – the eldest son of farmers Antonio and Evelina Lamborghini – was attracted to mechanics than to the land that his father harvested. At the very young age, he spent his afternoons in the farmstead workshop. 
Managing to get hired by the best mechanical workshop in Bologna, where he discovered the secrets of mechanics, Lamborghini was drafted and assigned to the 50th Mixed Maneuver Motor Fleet stationed in Rhodes at the outbreak of World War II.
He successfully repaired (and broke) vehicles belonging to the Italians, German and British. Founding his first company in Rhodes, a small mechanical repair shop, Lamborghini returned to Italy in 1946 and, taking advantage of incentives put in place to support the economic recovery, opened a machine shop in Cento to repair motor vehicles and build small utility vehicles. 
Observing the crisis suffered by local agriculture, he built inexpensive agricultural tractors within reach of small landowners, using the components of old military vehicles. The first was made from a Morris truck where he applied a fuel vaporiser of his own invention. He sold some eleven such machines, establishing himself as an entrepreneur.
Counted among the most important industrialists in Italy by 1963, Lamborghini decided to build the best grand touring cars in the world. An incident often told is that he complained to Enzo Ferrari about a broken clutch in his personal Ferrari. Ferrari reportedly told him: “Stick to making tractors and leave the sports cars to me.”
Determined to build a better car than his Ferrari 250GT, Lamborghini hired top talent, including former Ferrari engineer Giotto Bizzarrini, to design a new V12 engine, and Gian Paolo Dallara as technical director. The first prototype – the 350 GTV – was built in Sant’Agata Bolognese and shown at the 1963 Turin Motor Show. 
The refined production version – the 350 GT – debuted at the 1964 Geneva Motor Show. The Muira, launched in 1966, redefined the supercar segment like no other, establishing firmly Lamborghini and his car venture into the domain that Ferrari ruled. 
The emblem found on the bonnet of the Muira was a result of an exercise where Lamborghini contacted a well-known local graphic designer, Paolo Rambaldi, who asked him what personal characteristics he felt he possessed. “I’m tamugno (which translated from dialect means hard, strong, stubborn) like a bull,” was the reply. An emblem was born thus with a raging bull in it, popularly referred to as the world-famous logo of Automobili Lamborghini.
Retaining his spirit after he left this world on 20 February 1993, Automobili Lamborghini continues to make among the best and most desirable supercars today. They are made with his conviction that the best can still be improved and new avenues can be explored.
 

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