Italian supercar company Lamborghini is currently testing a diesel-powered version of the Lamborghini Gallardo.

The car is propelled by a Volkswagen V10 Turbodiesel Diesel engine. The engine is a 5 litre making 309hp and 749Nm of torque. This is probably the same engine in the Volkswagen Touareg V10 TDI.

Very nice stastistics, but diesel engines have a very narrow powerband, with much lower redlines than the high-revving petrol engines that supercar enthusiasts are used to. Will a diesel supercar be as fun to drive?

Toyota is also working on an alternative-fuel supercar running a petrol-electric hybrid powertrain.