quote: It's worth pointing out that lower drag coefficient doesn't automatically mean lower drag. To calculate actual drag, you multiply the drag coefficient by the surface area of the profile the car presents to the wind, times a few constants.
quote: I never said lowering drag will increase unstability.
quote: Yes they can and have and lower CG does NOT make a car more unstable. It does the opposite. These cars are tall to give the impression of roominess, that's all. Wheelbase comparison Chevy Spark: 93.1 inches Pontiac Solstice: 95.1 inches Track comparison Chevy Spark: 55.5/55.7 inches Pontiac Solstice: 60.1/60.7 inches Overall width comparison Chevy Spark: 62.9 inches Pontiac Solstice: 71.3 inches