721 hours so far in AC for a current racing sim, but I'll hazard a rough (and probably underestimated) guess at around 4-5 times that on both GTR2 and rF1 in their day. GTR2 moreso than rF1, so I've put that one in the poll.
You missed GPL in there btw. Still plenty diehards playing that one as their main sim.
You missed GPL in there btw. Still plenty diehards playing that one as their main sim.