The final engine was assembled in Crewe on June 1 by the dedicated team of seven people, who between them have a combined experience of 105 years building Bentley’s iconic V8 engine.
Bentley’s Member of the Board for Manufacturing, Peter Bosch, comments: “Our venerable 6¾-litre V8 has powered the flagship Bentley for more than six decades, and so has earned its retirement. Now, we look forward to the future of Bentley, powered by our exceptional W12, sporting 4.0-litre V8 and the V6 Hybrid - the start of our journey to electrification.”
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In production for more than 60 years, and with the same configuration and bore spacing as the very first version from 1959, the last L-Series engine will spend its life powering the 30th and last specially commissioned Mulsanne 6.75 Edition by Mulliner.
This bespoke series closes the Mulsanne’s production run, and celebrates the life of its iconic engine with a myriad of V8-inspired details including badging, blueprint graphics and even ventilation “organ stops” featuring a miniature version of the oil cap.
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Originally designed by a team of Bentley engineers in the 1950s to deliver a step change in performance over the straight six it replaced, the L-Series V8 first saw service in the 1959 Bentley S2 – developing around 180 bhp, deemed “adequate” by Bentley at the time.
Since then, through the advent of continual design improvement, turbocharging (first single, then twin), electronic control systems, fuel injection and variable valve timing the modern descendant of that original engine has evolved into something truly extraordinary.
Developing 530 bhp for the Mulsanne Speed, together with an astonishing 1,100 Nm of torque, the low-revving engine delivers a unique character that defined the widely-recognised “wave of torque” that all Bentleys now ride.
At the same time, emissions have been drastically reduced, with the modern engine producing 99% fewer harmful emissions than its forebear.
Every one of the 36,000 L-Series engines built over the last 60 years has been created by hand in the engine workshops of Bentley’s Crewe headquarters.
Even the modern engine takes 15 hours to build, and the key internal components are individually chosen to form a matching, balanced set so that the engine runs perfectly smoothly.
Once completed, and after thorough testing, the engine is signed off by one of Bentley’s engine specialists, as it has been for decades – with a plate denoting their signature affixed to the front of the engine.
With the Mulsanne completing production once the thirty 6.75 Edition cars are built, the all-new Flying Spur will become Bentley’s flagship model and will also receive a hybrid powertrain by 2023.
Bentley had taken its first step towards electrification with the the Bentayga Hybrid - the luxury SUV sector’s first plug-in hybrid and the most efficient Bentley ever.
