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      12-05-2008, 11:15 PM   #258
Lieutenant Colonel

Drives: Legacy GT - 13.704@99.39
Join Date: Jul 2007
Location: Manheim, PA

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Originally Posted by swamp2 View Post
Basically incorrect here. There are very heavy taxes in many EU countries based on displacement alone. Hence why many cars are infinitesimally lower in displacement than a rounded number in liters (specifically M3 = 3.999 l, taxes for 4.0 l and above). The reason you should care about hp/l is not for the performance it gives you in your car but because it is a challenge of extremely difficult engineering. It is simply doing more with less which is univerally valued in just about any endevour. In competitive auto racing where you have a displacement limit this is obviously the key to a great engine at a given displacement.
OK, tax regs are important in some countries, but in regard to engineering, I have this feeling that if you were in your Z06-powered M3 against my stock M3, blowing exhaust in my face as you ran away from me, your top thought wouldn't be: "Yeah, I'm killing him, but his car was more difficult to engineer. Damn!"