I think Smokeshow's been smoking too much as he doesn't seem to get the point, even when broken down into Business 101 terms.
Also anything with 500hp is not going to get any better than 15mpg - it's simple physics...to make power you need to burn more fule=more gas=lower mileage.
Note: ssumich's car puts down, to the wheels, 400hp, at the crank you're "approaching" close to 500hp. The engine could possibly put out more, but the options for harnessing this sort of power, i.e. transmission, driveshaft and suspension upgrades are the next limiting factors.
Why can't you be happy with getting this sort of output from a small 4-door without havig a car that looks like a gutted Civic dragster?
