There are 2 clear references to Speed: Tune-Man, the owner of the $150,000 boat, is the same as the Jaguar owner which is destroyed by Jack (Reeves) in order to get into the bus - when Jason Patric asks him the boat, after introducing himself as police officer, you can hear Tune Man say something about the insurance. The second, near the end, while Sandra Bullock starts her driving exam, she almost hits a bus very similar to the famous 2525.

When the oil tanker blows up, if you slow the video down you can see a cow go flying out of the explosion in the upper right corner of the screen.