Originally posted by: OS
The NSX is actually faster than the "only" 290 HP rating would suggest. The NSX has a midengined layout. Almost all ground up, purpose built race cars are midengined, including F1 cars. This layout helps acceleration two fold.
First, the balance and weight distribution puts the CG of the car close to the driving wheels and leverages that distribution during weight transfer under acceleration. Basically, when you accelerate in a midengined car, the weight transfer of the car pushes down the drive wheels, giving more traction when you need it.
Second, the NSX's implementation of the midengine layout does not suffer from a differential/directional change loss. For nearly all RWD cars, the engine torque output must go through a perpendicular change in direction. This transfer saps a couple percentage points worth of power. Also, the long driveshafts of most RWD cars add rotational inertia and loss to the powertrain. The NSX engine is transversely mounted, there is no such directional loss and it gets more power to the ground.
Another thing, the NSX is built almost entirely out of aluminum. It's fairly light and weighs under 3200 lbs.
cliff notes:
NSX haters, STFU