Speed sensor is located on the hub itself. Hitting the tire with a 2x4 shouldn't harm it. Its a robust piece of steel there, unless the guy missed and hit the inner fender. From there all bets are off.

If you can, take the X to have the codes taken out and see what they are. From there it should give you a general idea of what the problem is.

I mean I'v kicked the wheels off, taken dead blow hammers to the hub and such and everything has been fine. But if he missed or used the 2x4 between the spokes and tried to pry it off, he may have nicked something. Right now these are all guesses and it is best to have the codes scanned. In your neck of the woods, no DSC and ABS is very dangerous. So be careful, but if you wanna put a smile on your face after a long day at work... the occasional throttle blip in an open freeway shouldn't be a problem. lol

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2011 E70 50i M Sport