I just bought my 2011 toyota corolla a week ago and already having problems. When you hit 60 the rpm starts jumping up and down. The car loses a little power everytime it happens. I have read alot of messages from other people with the same problem. I am going to the toyota service department in a couple days to get it checked out. It is a very uncomfortable ride. The car is not smooth and is jerky. I hope they can fix it but everything I am reading is telling me that toyota won't do anything.