Latest version of game 0.6G
latest GPU drivers etc
I have no idea ..... please help !

The latest LFS version is 0.6Q!

Have a look at this thread from Scawen on running Runtime 0.8 with 6P - grab the zip from the first thread and read post #8 for advanced setup options

but you really want 6Q for the mirrors - you can look at other sims and say "oh yeah, your porsche could probably beat my XRT... but my car has real mirrors n|m ;p m|n

Thanks guys.

Welcome