My dad has a 2004 Mitsubishi Endeavor Ls. What is the difference between Ls and XLS?

LS and XLS come in AWD and FWD. If you're comparing both trims in AWD, then they are mechanically the same. The only differences are in the available options on the trim levels. The XLS is the higher trim level of the two. It has more standard amenities compared to the LS. It has a better stereo system. Cloth seats in the XLS are premium compared to the LS. It's just a little difference that you can live without.