It's not like the US has that many either. It's not the kind of winner-takes-all network effects industry that attracts venture capital outside of the Musk reality distortion field.
If you look at the greater NW European area there were (are still?) several startups, non got big enough to matter and they did not have infinite money to survive like some US based PE funded ones can. And even for Germany a quick "car startup germany" search will give you a few.
