I love the 350 Z considering how awesome it looks from a front view but I must agree that the roofline is horrible. Maybe it will feel better once you get to the actual car. But if they don't revamp the style before I get one I'll settle for the Z roadster. Considering what that car can do, the style is a small price to pay.
Beautiful Lexus by the way. I can only hope the side and front views match its sleekness from the back.
Another car that has an ugly roofline is the Merecedes convertible.