I haven't had much luck with anything smaller than 1/10 in terms of longevity of the electronics which tend to have too short of lifespan. They are also much more difficult to control, 1/10 is my sweetspot all around for longevity and ease of use.
I once bought several Mini Q-3's which were...
Kyosho is a reputable brand and they released the Fazer chassis early 2017 so there's a good chance it won't be discontinued anytime soon, but there's no guarantee how long it will last:
https://www.redrc.net/2017/04/kyosho-ep-fazer-toyota-supra-type-1-drift-car-kit/
Keep in mind that you can...