RC PRO AM is still an utterly fantastic game. It's a challenge to get through, too (I've dine it, but not recently...I don't remember all the tracks/strategies for the final 1/3 of the game).
played some gun nac today.. pew pew die bunnies! 
Totally. After I abandoned NES for TG-16/Genesis back in the day, my friend howled with delight at how awesome gems kept popping up on NES (SCAT, GUN NAC, etc.)