If you are looking for a mirrored surface, you could use Monokote adhesive chrome trim pieces (
http://monokote.com/trim.html)
The nice thing about using Monokote trim is that is relatively thin, is fuel resistant, and has an adhesive backing. It comes in many colors and is also a good alternative to trying to paint front/rear wings. You can use a hair dryer or heat gun to help bend it around corners as well.
It is relatively inexpensive and can be purchased online at many r/c stores. Here is a link on Tower Hobbies - (
http://www3.towerhobbies.com/cgi-bin...trim&search=Go)
The chrome Monokote trim is reflective. I can't find a good picture of it online, but I've seen it at my local hobby store. Unfortunately due to a snow storm I cannot get there today to take a photo of it.