I just bought my first 240 a couple days ago from a friend for $500. I guess you can say this will be my toy/project car since I had to let my Altima SE-R go a few months ago to a trade-in for my wife's 08 pathfinder. It has 202,000 miles on the stock KA24DE, but still runs fairly decent. I plan on giving it a tune-up in a couple days and see if it helps any. Glad to be part of the forum.