Optimised Bacalar W12 Engine Delivers Improved Power, Torque

Optimised Bacalar W12 Engine Delivers Improved Power, Torque

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)

Dacia Rolls Out 100,000th Bigster In Just One Year

Dacia Rolls Out 100,000th Bigster In Just One Year

Renault Group-owned European car brand Dacia has achieved a significant milestone with the rollout of the 100,000th Bigster just one year after its production began at the Mioveni facility in Romania. This impressive volume highlights the immediate and substantial demand for the brand's latest model. Even prior to its full market launch, the vehicle garnered over 13,000 pre-orders, signalling strong early interest in its proposition of a value-oriented, family-sized SUV.

The model swiftly translated this initial promise into market leadership, becoming the best-selling C-SUV to retail customers across Europe in the second half of 2025. This commercial success is mirrored in the United Kingdom, where close to 5,000 orders have been recorded. British buyers have shown a distinct preference for the efficient hybrid 155 powertrain and the generously specified Journey trim level, with Indigo Blue being the colour of choice.

Beyond sales figures, the Bigster's impact has been validated by influential industry awards, most recently at the 2026 What Car? Car of the Year Awards, where it was hailed as a definitive value champion. Designed to challenge the status quo, the Dacia Bigster, starting from GBP 25,215, successfully delivers a robust, well-equipped and practical solution for families, firmly establishing its successful position in the competitive automotive landscape.

Hyundai Motor India Reports INR 123 Billion Profit In Q3 FY2026

Hyundai Venue N-Line

Hyundai Motor India (HMIL) has released its unaudited financial results for Q3 FY2026 and nine months ending 31 December 2025.

The company reported a Profit After Tax (PAT) of INR 123.44 billion for Q3, representing a 6.3 percent increase YoY. Revenue for the quarter reached INR 1,797.35 billion, up 8 percent compared to the same period last year. EBITDA stood at INR 2,018.3 billion, a 7.6 percent rise, supported by festive demand and the implementation of GST 2.0.

The company stated that the domestic demand was supported by wholesale volumes increasing 5 percent QoQ. The Hyundai Creta recorded sales of over 200,000 units in the 2025 calendar year, while the new Venue model has received nearly 80,000 bookings to date.

Hyundai Motor India also entered the commercial mobility segment with the Prime HB and SD taxi models. Exports grew by 21 percent YoY in Q3 FY26, accounting for 25 percent of the total sales mix.

For the nine-month period, EBITDA reached INR 6,632.5 billion, a 3.3 percent increase. EBITDA margins expanded to 12.8 percent, up from 12.5 percent in the previous year, despite costs related to capacity stabilisation and commodity prices.

Tarun Garg, Managing Director & Chief Executive Officer, said, “The third quarter performance underscores our resilience and strong execution of 'Quality of Growth' strategy, marked by healthy growth in volumes, revenue and profitability. Notably on a year-to-date basis, EBITDA margins expanded to 12.8 percent as against 12.5 percent last year, supported by our efforts towards improving sales mix and prudent cost control measures. As we move ahead, the robust January’26 sales number gives us great momentum towards a healthy 2026.”

Particulars

Q3 FY26

Q2 FY26

Q3 FY25

9M FY26

9M FY25

Revenue

179,735

174,608

166,480

518,472

512,526

EBITDA

20,183

24,289

18,755

66,325

64,211

EBITDA %

11.2%

13.9%

11.3%

12.8%

12.5%

PAT

12,344

15,723

11,607

41,759

40,259

Jeep Reaffirms India Commitment With Strategic Plan Jeep 2.0

Jeep

Stellantis-owned Jeep has announced its Strategic Plan Jeep 2.0, positioning India as a central hub for its operations in the Asia Pacific region. The plan focuses on localisation, manufacturing depth, and export expansion from the company's facility in Ranjangaon, Pune.

As part of the strategy, Jeep intends to increase localisation levels to 90 percent, up from the current 65–70 percent. This move is aimed at strengthening supply-chain resilience and cost competitiveness. The Ranjangaon plant, which has an annual capacity of 160,000 vehicles, currently exports the Compass, Meridian, and Commander to markets including Japan, Australia and New Zealand. Plans are underway to expand exports to Africa and North America.

The company plans to introduce a new vehicle lineup in India starting from 2027. In the interim, Jeep will maintain its current portfolio through refreshes and special editions. To support its customers, the brand has introduced the Confidence 7 programme, which includes a buyback scheme, pre-maintenance packages, and extended warranties.

At present, Jeep operates over 85 sales and service touchpoints across 70 cities in India. The automaker stated that in 2025, the Wrangler Willys 41 limited edition sold out within seven days. The company is also focusing on its owner community, which has reached 100,000 members, through experiential platforms and brand clubs.

Shailesh Hazela, CEO & Managing Director, Stellantis India, said, “Jeep’s 85-year legacy is built on authenticity and adventure. Strategic Plan Jeep 2.0 lays out how we will sharpen our product strategy and strengthen the customer experience year after year, driven by deeper localisation, global product alignment, expanding our vehicle offerings, and programs that deliver real value. We are equally focused on taking care of our existing customers, ensuring they receive the support, service and confidence they expect from Jeep. Success in India demands resilience and long-term commitment and we are investing with that clarity to ensure Jeep remains a brand of pride and desirability.”

Maruti Suzuki India Reports INR 37.94 Net Profit For Q3 FY2026

Maruti Suzuki India

Maruti Suzuki India, the country’s largest passenger vehicle manufacturer, has reported its financial results for Q3 FY2026.

The company reported revenue of INR 475.344 billion, as against INR 368.02 billion last year, net profit came at INR 37.94 billion, as against INR 36.59 billion last year. It is to be noted that the net profit was impacted for Q3 FY2026 was impacted due to a one-time provision of INR 5,939 million relating to new Labour Codes.

During the period, the company achieved its highest quarterly domestic sales of 564,669 units, an increase of 97,676 units over the previous year. Total sales reached 667,769 units, which included 103,100 units in exports. This performance was supported by a recovery in the car market following GST reform, with the small car segment in the 18 percent GST bracket contributing significantly to the volume increase.

For the nine-month period from April to December 2025, the company recorded its highest sales volume, net sales and net profit. Total sales volume reached 1,746,504 units, with domestic sales at 1,435,945 units and exports at 310,559 units. Net sales for this period increased to INR 1,242 billion, while net profit grew to INR 1,085 billion.

Financial statements for the period have been restated following the amalgamation of Suzuki Motor Gujarat (SMG) with MSIL. This process took effect from 1 April 2025. The company continues to monitor market conditions as it manages its manufacturing and sales operations.

The recovery in the car market was led by the small car segment. Sales growth in this category accounted for 68,328 units of the total domestic increase. The company remains focused on domestic and export markets to maintain its sales volumes.