"I think that it would be very easy for every single car/vehicle to lower their Cd by smoothing out all the bumps, creases, pockets, slots on the nose -- and minimizing and optimizing the cooling air intakes. They just need to mold the plastic differently, and they could put all of us modders out of work... This should be STANDARD! Mold the plastic bits differently, lower the Cd by 0.05 (or so) and every car/vehicle would get 5-8mpg better on the highway. It's a no-brainer!"
Yes ... and most of these would be nothing new. Remember the Subaru XT Coupe from 20+ years ago? It had the perfect design for door handles ... completely flush ... and they contributed to the car's Cd of 0.29 (remarkable for the time).
http://en.wikipedia.org/wiki/Subaru_XT