2010 Corvette Grand Sport

[sumsum]

Vielleicht wurde also doch am Motor mehr gemacht

It's an LS3, yes, but with some very tasty upgrades. All Grand Sports get a forged steel crankshaft instead of the standard cast iron piece which can withstand higher loads for longer times as wells as tri-metal main bearings that'll take a whole lot more abuse than standard ones. On the manual transmission cars, you get a dry-sump oil system standard, with a higher flow and higher pressure oil pump and a 10.5-quart capacity, that dry sump occupies the same space as the battery normally gets, so it's moved to the rear as a result. Because of the dry sump complexity, the engine is being built by hand right alongside the LS7 and LS9. That means you get a properly balanced engine and a reinforced bottom end for the price of admission on the "cheap" Grand Sport model. Add to that the differential cooler at the rear and you have exactly what you need for a solid track day. Sounds pretty good to us.

Grüsse Beat