The rotors turn in opposite directions to cancel out torque, the twisting action which requires conventional helicopters to use a tail rotor a hazardous appendage.
The Arnage T has a huge 6.75-liter V-8 engine that puts out more torque than any other production sedan on the planet (enough to propel the 2.5-ton Bentley to a top speed of 168 mph).
But I see now, as I'm accelerating out of a shallow banked turn around 120 mph and I feel the torque-vectoring differential sorting itself out, that I've misjudged the car.
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The torque indicator turned out to be faulty in the 2000 prototype.
There's a nod to eco-friendliness with relatively low emissions, but the hybrid component mostly powers a KERS system that fills out the few weak points in the torque band.
The electric motor dishes out gobs of linear, head-snapping torque, quickly propelling you past the speed limit -- you've been warned.
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The lusty powerplant puts out 360 hp and 343 lb-ft of torque, with a very broad powerband.
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The N55 is a brilliant engine, outputting out 315 hp and 333 pound-feet of torque from 1, 400 to 4, 800 rpm.
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The 4.3-liter, four-cam, 32-valve V8 engine can race from zero to 60 mph in a respectable 5.9 seconds (the same as the V8 7-Series), throwing out 290 horsepower and 320 pound-feet of torque at 3, 400 rpm.
The Electric Defender test vehicles swap the 2.2-liter, four-cylinder diesel engine and six-speed manual gearbox of the regular Defender 110 for a 70-kilowatt electric motor that puts out the equivalent of 94 horsepower and 243 foot-pounds of torque.
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Bentley has given the GT Coupe its famous 6-liter, 12-cylinder engine but teased out more power than before (567 bhp and 516 lb-ft of torque) and added a new Quickshift transmission that allows double downshifting.
The signature piece in this car is the all-wheel-drive system, which can shunt most of the engine torque to the rear wheels as necessary and will direct more torque to the outside rear wheel in a corner to help null out understeer.
However, torque then becomes a problem, requiring huge generators with heavy copper windings that may scale out in the 3-4 MW range.
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