I've been looking around, but stopped once I decided on the KITT route. Once I take on Ecto-1, I'll let you know what I find. From my cursory look around, a couple of designers have made some that cost around 30-ish bucks that look good. Some of them have scale interiors that I'll have to digitally cut out to make room for the RC electronics, as they weren't intended to become RC cars. But I'll let you know once I start that project. Given the work that project will take, I'll probably start a thread and update as it goes along, unlike this thread which I just created after I finished the project haha.