2010 Bentley Continental GT Supersports

2010 Bentley Continental GT Supersports

On the other hand, if you think it possible – by way of octane-rich biofuel – to reconcile massive, brain-pan-sloshing displays of horsepower and torque with a reduction in carbon emissions - and keep a straight face - then by all means read on.

Bentley’s comeback-kid Continental GT, introduced in 2004, was better known as a grand tourer than a jagged-edged racetrack scamp. Then came the GT Speed, which added more power and nimble road manners, and it became the first Bentley to reach over 200 miles per hour. Then, a 24-month skunkworks project yielded the Supersport, an even more powerful variant that’s also lighter and, set up to run on ethanol – large quantities of it - emits less CO₂.

Of course, only the most passionate lovers of internal-combustion engines might cut Bentley slack for kicking off an environmental sensitivity project with a fuel-swilling, neck-snapping bruiser of a sports car. But the Volkswagen-owned company has committed to cutting carbon emissions, and you can't deny the Supersports is a conversation starter in that regard. Bentley says using biofuel in the Supersports sums to 70 percent less emissions "well to wheels," which takes into account all the CO₂s emitted as fossil fuels go from primordial ooze to food for supercars.

Plus, since the average Bentley owner has six other cars in his garage to choose from, a typical model logs just 8,000 miles a year. It's always possible for one of those other cars in heavy rotation to be a Prius, or a bicycle.

But enough sturm und drang. The Supersports' reason for being is simply outrageous fun. It gets power from the typical Bentley 6.0-liter, twin-turbocharged W12, tweaked to 621 hp and 590 pounds-feet of torque. That sounds like a lot, but the 12-pot has to pull serious weight -- 2.5 short tons. That’s 4,939 pounds – a ton more than a Ferrari F430. Nonetheless, the Supersports’ power-to-weight ratio works out quite well, indeed.

A strategic weight-reduction plan helped push the right end of that ratio downward. Swapping the Continental GT's luxury seats with lightweight racing buckets from Sparco, clad in diamond-stitched leather and alcantara (a grippy faux suede), along with other interior shavings cut 157 pounds. Changing the big steel brakes with carbon-ceramics saved 44 pounds of unsprung mass, new wheels: 22 lbs, chassis mods: 20 lbs. It doesn't sound like much, considering the traditional Continental GT weighs over five large, but the physics of it all belie the numbers.

That means it can dance. Imagine the late Andre the Giant in the Ballet Russe. Light, quick steering and heightened antiroll hardware connive to give the massive Supersports the alert feel of a smaller car hauling around far fewer pounds. Along the winding secondary highways of upstate, New York, the Supersports flitted from hill to dale like a Kodiak bear performing Cirque du Soleil’s “flying man” act (the one where they hang from the ropes). Hat tip to the engineers.

Keeping all that power under command is a traction control system that’s been modified for the Supersports’ higher performance. It's more compliant than similar systems. If a driver overcooks a turn and loses traction, for example, the system's software algorithm can detect a skilled move to correct, or a ham-fisted saw at the wheel. In the case of former, the ESP will add a strategic touch of brakes, but won’t intrude to cut power like others do.