You might have seen this over the last couple of days -
http://en.wikipedia.org/wiki/2009_24_Hours_of_Le_Mans

It was won by a Peugeot 5.5 litre twin-turbocharged diesel V12, with particulate filters!! 700 horsepower (520 kW) and 1,200 Nm (890 ft-lb) of torque.

A Corvette also won it's class, well done to them.