I find that most people out here who really want to race me are those mid 40 year old guys driving similar sized SUVs. (Exterras, Monteros Pathfinders, 4runners and so on) I don't have enough gear (3.08) to really give them any kind of a run so I let them take off and enjoy themselves. Who knows there are probably a few threads on their boards titled "Raced an Explorer"
The other types I find out here are those who want to play "whos-yer-daddy" on the freeway, they will swerve toward me, give me nasty looks, every now and then I get the finger and a Ford sucks, and of course they have to make a big deal of cutting around me and slamming on the brakes. Usually it's some jacka$$ in a RAV4 (nothing against the RAV4) with a piss on ford, chevy, and whatever else sticker.
I commute about 130 miles a day in SoCal traffic, just in case those of you who commute 130 miles a week haven't noticed any of this stuff. Then again I have been known to piss people off just by being around.... so maybe it's just me....