How VIP is Drag? Can You Spell C-A-F-E?
Todd Jensen at Autoblog has some interesting observations on the importance of aerodynamics to fuel economy. Drag is second only to engine friction in terms of consuming energy needed to maintain motion. Ergo, find a little bit here and there in the wind tunnel and gain a lot on the road when EPA comes calling to do its fuel economy ratings. Go here for Jensen's complete post.