Hi Storm, thanks! I also found those as well. Some info are useful, but most of them aren't very detailed. I suspected that some TTech cars were shipped semi-assembled in those days. I slowly worked my way through the dissembling and tried to order new screws and replacement parts along the way, so far so good. The difficult part would be finding some good pushrods to replace the thin stock one for the steering link. The suspension was way ahead of its time but sadly the steering setup was from the 80s'. It apparently uses a weak M2 cleives/clip from RC planes to connect it to the steering rack.😤
This Streetwise is the most basic version of any TTech cars, most of the gears are plastic as well as the ball-diffs, and it is almost impossible to find any upgrades these days. The only option is to find some custom CnC or 3D printing shops if I get desperate. Anyway, see of I can get hold of a good old X11 or XK98 later on (if somebody wants to sell their collection!)