 Purchased my Maxima with 33k miles in 2004. Ran great and very reliable until around 2008. The maxima began to barrage me with check engine lights, needed an 02 sensor, brakes, MAF problems, muffler holes, and the list goes on. The car now has 124k miles and it is time to move on. As soon as I get one thing fixed, another thing goes down and I can't keep up with it. The car is very fun to own and I love the look and power of it but I can't keep up with the maintenance. According to the internet, 2001 Maximas are prone to every problem you can think of! Don't buy one! 