[johnunit]

Something I've noticed with Sentra SE-R's rims, and my own (my Prius came with custom 5 spoke wheels with about a half inch dish and square spokes), is aerodynamics MAY be more significant than weight when switching wheels. I would be surprised if my Prius's current wheels didn't weigh less than stock, but they're certainly Not as aerodynamic. Changing offset and width would also have aerodynamic effects.