Weird, Had a blowout in my passenger rear tire, tire shredded, had 2 new ones put on, everything seemed ok BUT THEN suddenly one day I looked down and I was going 120 mph when I was really only going 52 mph !!!! Could the ABS on that rear wheel be the culprit ? Also the reason for the blowout was that car sat for months and was vibrating before blowout due to maybe a bubble on the tire or a flat spot from sitting!!!