[robchalmers]

The new bug has a high Cd due a number of reasons, its stubby tail, roof angle, hood height/angle. But it has more to do with when you view the car from above.

The outboard fenders create distinct work zones for the air. The flow peels from the front fender edge in turbulence barely having chance to straighten into a laminar flow before it reaches the rear fender stagnation point, this second area acts almost like an increase in frontal area.

‘coke bottle’-ing a cars waist can be beneficial in a few circumstance, but this ain’t coke bottle-ing