I have 20'' on my sc400, and know 20'' look much better than 19''. You should get you a nice set of 20''!I have some Sterns staggered 20x9.5 rear.I had to do some work to make them fit but now I get a lot of comments. the rear looks wide i could post some pictures later if you would like. The ride is not bad as I thought it would be. On the other hand if you are going to lower the car than I would go with 19's