Reminds me of that wooden Citroen someone built in the 1960s
http://cache.jalopnik.com/assets/res.../Tryane-II.jpg
Seriously however I think the French from the 1950s and 60s would be worth a google as they went a lot for the low drag / small engine idea - Panhard flat twin for example.
http://farm1.static.flickr.com/24/54...fa526a8f7e.jpg
The idea was to build up and maintain speed over long, straight roads which may be what you are after.
A way of getting started, if you aren't already, may be to look at a Lotus / Westfield 11 body/chassis. RWD though.