[Cybereye]

1.) Wouldn't a well designed hood to windshield transition with hidden wipers save a lot more than special made low power wipers? Hopefully the wipers will be protected from air flow.

Here a link that solve the problem.
http://technology.askpaddy.com/car-technology/self-cleaning-wiperless-windshield.html

2.) The photoshop folks would need to mock this up to see how it will look, but chamfered entries from the sides to the wheel well may look interesting and lower the Cd. This might "soften" the turbulence at the front of the wheel well and reduce the pressure by directing flow out to the side of the car at the rear of the well. Another idea would be to offer wheel well skirts for the rear wells as an OPTION. Don't buy it if you don't like it. I probably would not opt for skirts, but would need to see visual to say for sure.

I would buy skirts, but I do agree I have to see what it would look like first. It could have aerodynamic hubcaps. I'm sure GM is working on that as well.