I'm not a huge fan of Cannonball Run. In a recent bout of nostalgia I decided to give the original a watch and was surprised at how unfunny it actually was. So I then gave the "Canadian Cannonball Run" a go and was unsurprised at how unfunny it was.
But the odd thing is, though I don't find either comedy that funny, yet I still don't dislike them. With both films it's fun to see the various celebrities poke fun at themselves and generally act like goofballs. You may not laugh, but they seem harmless enough in the most uncritical sense.