I have an 07 gt automatic with only 6000km on it I only taken it out 3 or 4 times this year and I notice a vibration in my steeing wheel witch goes away after a few miles on the highway so it must be the tires getting a flat spot from being parked for weeks on end but my last drive it dindnt go away all together like the last times it not major but i dont like it vibrating at all