Sounds like a nice spec OP get some pics up.
There are 3 types of people who will try and race someone - 1) the autistic / aspergers type who have no concept at all of danger or the fact they might be pissing someone else off by trying, 2) the jealous lot who cannot stand being outdone when someone apprantly has a nicer or faster car (they are usually with their GF so are trying to show off, and 3) people with anger management issues (its not actually a race, but road rage). None of them are good!