Coming home today from Las Vegas, my sweet thing starting to telling me to SLOW DOWN. CRAP, I was at a stop and it still was saying to SLOW DOWN. Screw it. Bonzi. Then it started to flash back and forth from SLOW DOWN to CHECK ENGINE. Darn, I should have stopped in Baker. No, I think not. I just turn the stupid computer off and drove the beast home. Heck, if my car cannot take it why brother? PS: no car passed me from Las Vegas today on Thunder Road to Orange County. The 550 is a tank. Only drive 12 cylinders You have some extras.