LCD Resolutions?

I've been looking around at LCD's for my car, and I was just wondering what resolution would be best to have for an LCD, the most common ones I've seen are 740x480 and 1440x234, so which would be better and why?

i would go with 740x480, if you multiply height res by width res, that gives you more total surface area of pixels. more pixels means smoother picture. 1440 is much better for width, but only 200 something lines of height sucks. so go with the 740x480.