We've been speaking of drag in terms of fuel economy....

Are you suggesting that Formula 1 cars, or any high performance racing car for that matter, are fuel efficient? I think you've got a tough case to make there. Certainly their fuel economy has to do with a lot of other factors, not to mention thirsty engines...but your own argument re their higher drag would support the contention that higher drag automobiles have to work harder to push their bulk through the air.

I really can't believe this is a bone of contention...the idea that a higher drag coefficient car has to work harder, and all other things will be less efficient in its use of fuel, has long been recognized by automotive designers and really isn't open to cogent debate.

Even so, I think you're mixing apples and oranges in comparing the aerodynamics of an ultra high performance racing car and those of a street car. The two operate in entirely different environments in terms of aerodynamics.