I was messing around with the Le Mans Quattro today and started to get annoyed because, in some turns it accelerates without any throttle applied(pushed me off at the end of some turns). I was curious why, so I took it out onto the test track and started it moving. At 50 kph, I completely took my hand off the throttle(the throttle readout showed no throttle), and started a slalom. After about a 1.5 km I was going over 200 kph, without ever having touched the throttle. Anyone know what would cause this? The car is completely stock.