I already suggested Ricochet and Meister before!

A _white_ WRX? Hmm... on one hand BT/ALT Bluestreak/Silverstreak is the WRX (Jazz = Mazda RX8) but on the other hand some people associate a white sports car with Jazz. So I guess you could go either way.

So you could have:
BLUSTRK
JAZZ935 (a reference to the fact that G1 Jazz was a Porsche 935 Turbo)

How do you check which names are taken or not?