Marc Sayer wrote
>This mixes several data into one pie and obscures the results. With any car,
>once you get past a certain speed, the cd will have the largest affect on
Is that coefficient of drag, or cubic displacement?
At 60 mph, a 1961 Bluebird will probably get better mileage than a 2001 5
liter mustang, the Bluebird having a much lower engine displacement (and
weight) but a much higher coefficient of drag.
If that bluebird were able to (hypothetically) reach 60 in second gear,
however, it would probably not get the fuel economy of the Mustang in
high gear also going 60.