This is my first post, but I have been reading the forums since I bought my Xterra in November, I have a 4 banger and love it. I took it on my first road trip last week from Dallas to Springfield, Missouri. I was doing between 75 and 80 most of the way with no problem, as far as quick punch at cruising speed, not so much, it is better off the line. Overall, I'm very pleased with my 4 cyl. Xterra on short trips or long.