  At around 30,000 miles, the transmission went out. No warning at all. I tried to start it, it jumped forward and died. Nissan had to bring a wrecker. They replaced the transmission, but now I think it is going bad again. I have around 45,000 miles on it and 2 days ago, it started getting really loud, almost like an ATV. When I let off the gas, it still roars loudly. The engine has always been very loud and it has gotten worse with time. It has always jerked when taking off and it smells flooded when you start it. Last winter it would only start if I pumped the gas. I'd crash the stupid thing if I didn't think I'd get hurt! My opinion of Nissan is not good anymore. 