How about Need for Madness???

It is a fun game like a mix of Carmageddon and Need for Speed except with crap graphics which is a great thing since it could be decent on the N900.
Based on java, maybe a port is possible?

PS: Need4Madness 2 is in the works with multiplayer, new & highly detailed cars, new maps, larger & highly detailed maps and should've been released on 1st June. Guess it could be dropped and become vaporware, but they have a mailing list for your convenience.