racesimcentral, 
WRC 9, WRC 10, art of rally, MudRunner, Circuit Superstars, Trail Out, Inertial Drift (plus DLC) for $13: https://www.humblebundle.com/games/catch-my-drift-offroad-rally?partner=rsc
Humble is a legal reseller of Steam keys. You can adjust the affiliate % RSC gets below the checkout button.