[RodKnock]

If you're driving your Cobra 2,000 miles per year, get 10/mpg at $5/gallon (nearly that here in the Bay Area for supreme), then we're talking about $1,000/year. And if you're going to drive a fun sports car anyway, then likely 50% +/- of that $1,000/year or $500 is really the true difference.

That's small potatoes in terms of sports car ownership.