I purchased a 2010 Buick Lacrosse LTZ two weeks ago. It has 40,000 miles on it. Last week my wife was driving on the highway and all of a sudden the car had zero acceleration. She was able to navigate it over to the breakdown lane. The car's engine ran fine but would not accelerate. The car would not move in drive nor reverse either. This problem came out of the blue. Well the car is in the dealer service area and we are being told that they needed to order a part for the transmission. We have owned the car for three weeks and for 1/2 of the time it has been in for service. Very disappointed in Andover, Ma. I'll try and keep you posted while we drive around in a 1997 Chevy Van that was lent to us from the dealer. Not exactly the car I expected to be driving.