Kubuntu
AMD HD7800

All cars have their polygons(?) messed up. Any way to fix?

Same problem here:

Ubuntu 17.10
AMD HD5770

It seems to be a poblem with older AMD GPUs? Any ideas how to fix it?

Count me in with messed up cars--first race, all the cars were fine. From that point on, multiple reboots, tweaking and etc, still cars always look like a pile of metal shards--otherwise game works great.

AMD A10-7870K
Ubuntu 18.04 (fresh install)