The first Cannonball Run was brilliant. The sequel seemed, well, painfully less. It has such a, "we don't know what to do to fill up 90min so we'll make it up as we go", feel to it. At one point several of our stars are dressed in harem garb dancing in front of the movies 'bad guy'. It is a scene that runs entirely to long and serves no point when the writers could have come up with much better ways to pull off a distraction than that. Heck, I did sitting on my couch rolling my eyes at that skit. The movie does have a few good moments but the humor falls short most times and the fun of the race is played down by cramming it full of awful skits for laughs especially the end of the movie/race at the finish line. What a massive let down. Whom ever wrote the script either lost or never understood the point of the first movie. It might make for a fun 'sick day' movie or one to watch after a bad week and you want to escape but on it's own it doesn't measure up, in my opinion anyway.
I say watch it just to see for yourself, unless it is on cable then definitely watch it there.