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Bentley Continental GT3 Pikes Peak racer puts out 750 horsepower on biofuel

Bentley revealed its Continental GT3 Pikes Peak car to us earlier this year, but was short on engine details. That left us especially curious, as Bentley foreshadowed lots of modifications and a promise that it’d run on a renewable biofuel. Of course, more power than standard was expected. Today, all the details of this wild Bentley are available. Its 4.0-liter twin-turbo V8 engine will make “more than” 750 horsepower and 738 pound-feet of torque. ThatÂ’s a 100 horsepower increase over the most potent street version of the Continental, the Continental GT Speed. HowÂ’d Bentley do it? For starters, Bentley began with the GT3 race version of its 4.0-liter V8, not the street version. But Bentley went to town on this race engine for Pikes Peak anyway. It has new pistons and connecting rods, plus the boost is turned up to 2.2 bar with larger turbos. The carbon fiber intake manifold is reinforced and made thicker than the standard one. Plus, one-off exhaust manifolds made from Inconel alloy by Akrapovic are fitted. The exhaust ultimately exits via very short pipes just behind the front wheels. Not very Bentley-like. Cooling is reinforced by a secondary cooling system positioned in the rear of the car. The rear windows are traded for air scoops that channel air through a second radiator, exhausting heat through ducts in the trunk lid. It all runs off a dedicated secondary water pump. Another change youÂ’ll find at the rear is a new driveshaft with a larger diameter for better durability. The biofuel Bentley uses is called 98RON Renewable Racing Fuel, and Bentley says it is "a dedicated blend of advanced biofuels specifically designed for motorsport, and is a technological stepping stone to sustainably-created eFuel with a greenhouse gas reduction of up to 85%." Bentley didn't say what the emissions reduction was for this specific biofuel in the Pikes Peak car. When it comes to handling, Bentley says it has significantly modified the GT3 setup. ItÂ’s running far more camber in front and rear. Softer springs and anti-roll bars were fitted to allow more body movement and maximize weight transfer for braking (keep in mind all your braking will be done while going straight uphill). Plus, the brakes themselves are newly water-cooled to handle the extreme loads that this hill climb will put on them. You can watch out for Bentley's attempt at a record on June 27, a day that will mark the 99th running of the Pikes Peak International Hill Climb.

What it's like to drive a brand-new, 92-year-old Bentley Blower

“Vivid” doesnÂ’t even begin to describe this; neither does “damn cold.” The throttle is pinned to the firewall, the needles behind the glass in the dashboardÂ’s 10 dials are twitching and dancing, the supercharger boost gauge is nailed to the lock stop, and the dark-green scuttle is shuddering with the ripples of the concrete banking. Think World War II airplane over the storm-tossed North Atlantic – I even slid a picture of my wife into my breast pocket this morning Â… IÂ’d be grinning, but the freezing blast over the leather-strapped bonnet gives me a rictus grimace. ThereÂ’s a lot to do in this 92-year-old supercharged Bentley as its fish-tail exhaust blares seal-honk indifference at a shoal of insignificant super cars fluttering in its wake; at 100 mph this is motoring at its zenith. They donÂ’t make ‘em like they used to and I used to think that was indubitably true of this car: Sir Henry ‘TimÂ’ BirkinÂ’s Blower Bentley. This was his favorite out of the five Blowers built at the Welwyn factory between 1929 and 1930. It was bankrolled by Dorothy Paget, the Whitney family heiress, and serial race-horse owner and gambler. How famous? This car, known as Number Two, was entered in the 1930 Le Mans 24-hour race. Birkin drove it like a bat out of hell in the initial stages of the race with the tacit approval of the Bentley factory, which had entered a team of "6 1/2 litre" naturally aspirated cars and was looking for its fourth-consecutive Le Mans victory and the marqueÂ’s fifth overall. They used Birkin and this lovely old machine as “the hare,” testing the potential and reliability of the astonishing Mercedes-Benz works supercharged, 7-liter SSK driven by Rudolf ‘RudiÂ’ Caracciola (ironically Paget also owned one of these rare and exotic beasts). The fast and courageous Birkin was sent out to poke a stick at the German ace – it was like poking a waspsÂ’ nest. Twice Birkin overtook Caracciola at over 120 mph at the end of the Mulsanne/Hunaudieres straight, with one wheel on the grass and the rear tire down to its canvas. By all accounts Caracciola was so startled simply because he couldnÂ’t believe that anyone would be actually overtaking him. Legend has it that in pursuing Birkin, Rudi Caracciola damaged the engine by over using the supercharger, which could be clutched in and out, but the truth is more nuanced. Birkin drove his car so hard he twice lost a tireÂ’s tread and had to pit early.

Bentley plotting Mulsanne performance model for Paris debut

Between three distinct body styles and numerous engine specifications, Bentley has made more versions of the Continental over the years than we would care to count. But one thing it has, by and (very) large left alone is the Mulsanne. Sure, it's done some special editions and some extra equipment packages - it's even toyed with the idea of a two-door convertible version - but at the end of the day, the Mulsanne soldiers on as a four-door sedan with one engine and one engine alone. That may be about to change, however.
Fueled by ambiguous pronouncements from Bentley's returning chief Wolfgang Dürheimer, rumors from the UK suggest that the Flying B marque is preparing a more performance-focused version of the Mulsanne to debut at the Paris Motor Show this October.
Details are few and far between, but we'd expect the Mulsanne's long-serving 6.75-liter V8 engine to be further tuned beyond its current specification of 505 horsepower and 752 pound-feet of torque, accompanied by a stiffer suspension, bigger brakes and other upgrades. Historically Bentley would turbocharge the Mulsanne's predecessors (to turn the 90s-era Brooklands, for instance, into the Turbo R), but the Mulsanne's engine is already spooled up, so the British automaker will likely have to massage the extra muscle out another way.