S430 VS S320 VS S500
Obviously the smaller engines will cost a bit less to maintain and feed, but I wouldn't expect choice of engine to effect repair costs much.
The S320 is obviously uses a smaller engine, and its body is a short wheelbase version. Some like its styling better than the LWB, which is the more common in the U.S.
Welcome to the forum. You might find this helpful as well: https://mbworld.org/forums/suggestions-feedback/260977-some-new-guy-help.html






