Thanks for your response! Its fine to get pros and cons!

In the moment I check all the possibilities to organize and sell my rigide 4wds in a first lot of 25 up to 50 kits in electric version and 20 up to 30 in nitro version. As written before, the cars shall be equal in lap- and runtimes to realize open races with duration of approx. 8 minutes.

All in all there shall be one basic chassis with either electric or nitro upgrade possibility. And, especially for beginners a RTR version of each electric and nitro. For this my target price level is below 400 euros (approx 500U$). My main interest is to reach the youth and beginners who dont care (or dont have the expirience) to adjust setups or refill the absorbers but just want to have the simple fun. Thats the reason to design the cars as minimized as possible (for example the rear axle is a solid tube, the main gear and all the other parts can be put together without tools).

As I am working as a teacher in a technical highschool, I dont have the resources to produce by myself, nor I have the money to prepay the whole first lot! For this I check to find a cooperation with a model cars company or to organize all with a web-startup project (like kickstarter).