I just put on 205/45-16's Dunlop FM-901's B4 my car got totalled... see thread: http://msprotege.com/vbb225/showthread.php?t=71378
The tires handled great, and the sidewall height looked good too. I'd go w/ 45's, but if you want to go w/ 50's, it's your choice.
BTW... The second # in the...