[davestebs]

Thanks Andrew,
Glenn's repair manual gives a brief decription of Tapley data. The figures are the maximum grade the car can climb in each gear. 100% grade is a 45 degree slope. The procedure for measuring drag is to accelerate to 80 mph on level ground, then coast down to 60 mph.

The thing that interested me was that the drag for a ti is less than the drag for a Sprint GT. We know that the ti has a low drag coefficient by design, but the actual drag is the coefficient times the frontal area times velocity cubed (I think, maybe it's velocity squared). Anyhow, I've wondered if the Sprint GT might have lower actual drag due to less frontal area, but it looks like the ti/Super still is better. I also wonder if the changes to the body of the Berlina resulted in more drag or less.

Sometime I want to do some research and find out how a Tapley meter works.