ive had 2 s13's and an s15. If you afford an s15, go with one, much newer car and better all round. With s13's, try not to get one with a sunroof, if you do, check for paint bubbling around the edges, as this can be a major problem. Also, before you buy one, get a mechanic to do a thorough checkover of the car, as they are getting a little long in the tooth. Overall, i loved both my s13's (sr20de, ca18det that went to a sr20det). Both engines are great. But definately, my S15 was leaps above those 2.