Mario:
I think that you have a real winner here !!! I was vaguely thinking along the same lines but was focusing on the problem and not the answer. Looks like you have found that magic combo that will work and sell faster than you can have them made!!! The end of this month I am having a open house / Fun Fly here at the Flying Thunder Air Field (
www.midamericamotorplex.com) the link shows the road course and the drag strip the air field will be east of the drag strip and has a 3/4 mile asphalt runway. I will give you an personal invitation to attend if possible. If not when in the area I would be more than happy to set up a tour and fly what you want!
Again congrats on the combo!
Larry