Haven't a clue how fast it will really go. Had mine over 150 on I75 outside of Tampa once - smooth as silk and just as scary - but backed down. And once is enough for me.

Anyway, my crustry old Chrylser Mechanic AL told me with all credibility that new cars are top-end limited based upon 'factory equipment' tire specifications. A product liabilty issue, I suspect, but he said the tires that come on the XF are rated faster than she'll go.

Anybody else heard or know about this?