Got some extra time on your hands?....

[srwtlc]

....Build yourself a wooden supercar (http://www.woodworkingnetwork.com/community/project-gallery/wooden-supercar-took-over-10-years-build)!

[Burkhardt]

Would that work as well? (http://www.roadandtrack.com/car-culture/a28088/behold-the-worlds-fastest-log-car/). 50 mph, might be fit for Fred Flintstone...