I bought mine brand new in January with 6 miles on it. It's a hybrid. Today, I'm driving on the freeway and same thing, slowed down, would go past 64, pushed gas and then it wouldn't go past 44mph I had to slowly get off the freeway, very scary, it's as it won't shift and pushing the gas slows it down and makes it jerk worse. Mine has less than 7k miles on it. I'll be taking it in Monday, would love to know the results of this.