In my "Choti #5 ultra-thingie" build:
http://slotblog.net/...-ultra-thingie/
I needed to make a quickie test chassis and body to pre-test my plans for the real car. After it was successfully tested, I removed some key parts and was left with this hanging around gathering dust:
The chassis wasn't a precise work of art and lacks redundancy bracing. The body has test holes and a plain jane paint job. I plan to build it into a complete car.
If you want a nice handling Thingie at a budget price, this may be one to consider