A few more for consideration...
MOPRPWR (MOPAR POWER)
XLR8R (ACCELERATOR)
CLLGFND (COLLEGE FUND)
2MCHTRQ (TOO MUCH TORQUE)
LWDENUF (LOUD ENOUGH)
2FST4GS (TOO FAST FOR GAS)
BRK4DZL (BRAKE FOR DIESEL)
SMKSCRN (SMOKESCREEN)
MMZTOY (MAMA'S TOY)
KLLRB (KILLER BEE)
V8HNTR (V-8 HUNTER)
GRJMMR (GEARJAMMER)
CNTHRU (CAN'T HEAR YOU)
RU NVS (ARE YOU ENVIOUS?)
HI OFCR (HI OFFICER)
INAHRRY (IN A HURRY)
1BDDODG (1 BAD DODGE)
NOTAHMI (NOT A HEMI)
ONLYA6 (ONLY A 6)