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Bentley builds its final 6.75-liter V8, ending a 61-year production run

Bentley has just finished its very last 6.75-liter V8. While engines come and go, this is significant because Bentley has been building this engine, known as the L-series, for 61 years. This final engine will go in the 30th and last Bentley Mulsanne, a 6.75 Edition by Mulliner, marking the end of the flagship sedan. The L-series engine was first introduced in 1959, and according to Bentley, it was developed in order to develop more power than its existing inline-six without adding weight or taking up more space. The engine in fact weighed 30 pounds less than the six-cylinder, and it made about 180 horsepower. That original engine "only" had 6.2-liters of displacement, and it wasn't until 1971 that it would reach 6.75 liters thanks to increased stroke. This final version of the engine is significantly different from its fuel injection to its twin-turbochargers, but is based on the same design. And with 530 horsepower and 811 pound-feet of torque, it's the most powerful iteration of the engine. At 61 years, the Bentley engine is arguably the V8 with the longest production run. While the first-generation Chevy small block V8 was introduced earlier for the 1955 model year and is still built in crate engine form, GM stopped using it in production cars in 2002. Far fewer Bentley engines were built, though, with a total over 36,000, as opposed to the millions of Chevy small blocks in the world. Of course, volume is sort of the antithesis of what makes a Bentley a Bentley. With the 6.75-liter engine out of production, all of Bentley's engines are derived from VW Group engines, from its W12 to the plug-in hybrid V6. Related Video:    

2017 Bentley Mulsanne defines the latest in handcrafted luxury

It takes 144 craftsmen roughly 399 hours to build a Bentley Mulsanne. In today's world of automation and just-in-time parts delivery, such statistics sound ridiculous. But this old-school approach to vehicle assembly earns this beast its status as Bentley's flagship. It takes about a third of that time to assemble a Continental GT, for instance, which is one reason the Mulsanne is so expensive. It's also why Bentley moves more than five Continental models for every Mulsanne it sells. Bentley has a brand-new crown jewel coming soon to dealerships as a 2017 model, and it will debut next week at the 2016 Geneva Motor Show. An Extended Wheelbase version joins the base Mulsanne and the Speed, pushing the lineup to three for the first time. Although Bentley officials take pride in the fact they are the largest producer of 12-cylinder engines in the world, the Mulsanne continues to soldier forth with the long-serving 6.75-liter V8. While this L-Series engine traces its roots all the way back to 1959, as evidenced by its cam-in-block overhead-valve design, it's been fully modernized with electronic controls and twin turbochargers. The result is 505 horsepower and 752 pound-feet of torque (or 530 hp and 811 lb-ft in the Speed), routed through a ZF eight-speed automatic transmission to the rear wheels. This is the same engine that has powered flagship Bentleys since 2010, and it's effortlessly capable of pushing the Mulsanne from 0-60 in 5.1 seconds and all the way up to a top speed of 184 miles per hour. The upgraded Mulsanne Speed improves those figures to 4.8 seconds and 190 mph. That's plenty of performance for this kind of vehicle, weighing as it does nearly 6,000 pounds. With that kind of power and heft, a solid chassis is a must. Active engine mounts join new suspension bushings for 2017, and the air suspension system has been updated. Continuous Damping Control and a Drive Dynamics Control System with three factory and one custom setting are standard. Also new are tires codeveloped with Dunlop that have foam-filled cavities to reduce interior cabin noise. Where the styling of the outgoing Mulsanne is smooth and stately, the new one is more angular and modern. At the front, the traditional upright grille remains, but it's over three inches wider than before, and is slatted with vertical vanes in polished stainless steel that are meant to recall Bentley classics from the 1930s.

Bentley has built more than 20,000 Bentaygas in four years

It might not feel like it, but Bentley has been building an SUV for four years now. The Bentayga was introduced in 2015 and entered production at the beginning of 2016. Since then, the model's lineup has expanded to a range of six variants and numerous powertrain options. In total, Bentley has built more than 20,000 examples of the Bentayga, and demand does not appear to be dropping.  Like Rolls-Royce, Lamborghini, and Aston Martin, Bentley turned to the crossover and SUV market for a bump in sales, and the Bentayga has been a brand MVP ever since. Buyers have the choice between the Bentayga, Bentayga V8, Bentayga V8 Design Series, Bentayga Speed, Bentayga Diesel, and Bentayga Hybrid, as to ensure there's something for every type of buyer.  The launch powertrain in the Bentayga was a twin-turbocharged W12. It made a claimed 599 horsepower and 664 lb-ft of torque. At full blast, it is capable of running 0-60 mph in 4.0 seconds and tops out at 187 mph. Bentley topped those impressive numbers with the release of the Bentayga Speed. It too used a twin-turbocharged W12, but on those models, it made 623 horsepower. With a top speed of 190 mph, Bentley claims the Speed is the fastest SUV in the world.  Downgrading in engine size and power, the Bentayga V8 was unveiled in 2018 with a twin-turbocharged 4.0-liter eight-cylinder engine. It makes 542 horsepower and 568 lb-ft of torque, and with the foot to the ground, it can do the 0-60-mph scoot in 4.4 seconds. Top speed is capped at 180 mph. Bentley offers a Bentayga V8 Design Series for those searching for a more specialized look.  The other two options are the hybrid model or the diesel model. The diesel, which is not available in the U.S., has a triple-charged 4.0-liter V8 that produces 429 horsepower and 664 pound-feet of torque. The plug-in hybrid, Bentley's first foray into brand electrification, combines a 17.3 kWh lithium-ion battery pack, an electric motor, and a V6 engine. Together, the system makes a claimed 443 horsepower and 516 lb-ft of torque.   If those versions of the Bentayga were too bland, Bentley has also offered several special-editions of the questionably designed luxury off-roader. There was the Pikes Peak edition that commemorated the Bentley setting the Pikes Peak SUV record. There was a Stetson edition with Texas flair. And we can't forget our personal favorite: the Bentley Bentayga Falconry by Mulliner. Related Video: