i was just looking in my basement today and i found a few .051 u control cox engines for my u-control planes. I'm using a cox teedee for my u-control now, but in the mean time i found 2 engines just gathering dust in my basement and the word tether car just came to my mind. does any1 know of kits to build tether cars that they still make? i dont want to buy a car off of ebay. i have every thing exept the car its self and the clutch bell set up thing.