Anyone gone from 19" to 20" wheels and wanna tell how much rougher the ride is?

 

based on my experience going from 18" to 19", I would say "a little bit"

I don't think you are going to get a clear or definitive answer to this question; it depends on what you call "rough" and also what kind and size tires you put on

 

I am running 275/35R20 on mine. The car came that way from Roush. I can't give you a comparison for ride, but I can say that I really do not notice it being an excessively rough ride. My suspension is also pretty stiff. The car has that tight stick to the road sports car feel. I think you will like any slight change in the feel unless you are looking for a luxury car smooth ride. I am sure you will feel slightly more of the bumps in the road.

One thing that I do notice is that you really have to watch your tire pressure. Changes in temperature really have a dramatic affect on the pressure. I notice much more fluctuation than a taller sidewall tire.

 

The wife has a 2018 GT with the 20" wheels/tires. When we brought it home the tires felt like rocks. I checked the air pressure the dealer had put 35 psi in all tires. I dropped that back to 32 psi cold, and the car rides just fine. I can't tell much or any difference between our '18, and our previous '13 with the 18" wheels/tires.

 

That's an interesting point about the temp and sidewall.
Thanks for the info!

 

Take one for a test ride and let the seat of your pants tell you!

 

I went from 18 inch to the 20's and it was a little bit stiffer ride. Nothing to complain about. But it looked much better imo