hey it seems i have a similar problem. The car isnt consistent. All within 40minutes of night driving....the car has behaved differently. Starting off it has nice crisp acceleration, moving as if revs. At 60kmhr in 3rd gear, u tap on it and it moves as u like. On the way back home however, it just started to feel sluggish and on 3rd gear and at 60kmhr, u tap on it and all it does it rev but the car doesnt move. Dont know what is up?