Bryanm.AMG

Hi. I just recently got ahold of my beloved C63. I’m already looking to swap the wheels out for some bigger wheels to fill it in more and give it a different look. I’ve been considering 20’s but would like to know if it really sacrifices the ride completely.

skullbox15

I stuck with the stock twin 5-spokes in 18" as the tires are cheaper. If you drive it they way it deserves to be driven, you'll go through rear tires quickly. You can get some pretty wide tires on the stock rims. I'd put your money towards other things that will likely need to be addressed like cam adjuster plates, camshafts, lifters, PCV value, etc.

Bryanm.AMG

Well, it’s relatively low mileage, and I’m less concerned about the repairs with motors as I myself (a technician) will be doing them. I’m generally more concerned just about wheel size. And the overall look. I’ve really fallen in love with some higher up after market wheels, but can not decide if I should only move up to 19’s which would be fine, or if I can move to 20’s if the ride doesn’t get sacrificed as much.

AMGSPY

I live in the NYC Metro area and the roads can be pretty bad. My 507 has the OEM 19s for summer and I need to be very careful not to damage them. They are great on good roads but not fun on bad ones. I actually prefer the 18s I run in the winter as they are more forgiving and add just enough extra cushion on bumps and holes. I can't image running 20s around here.

Mort

The ride on 20's will suffer. How much over 19 " wheels I am not sure. Not only is the sidewall shorter and less able to absorb bumps, you will also have to run higher air pressure to protect the wheels from dented lips and cracking. It can be pretty brutal depending on the condition of the road surface. I really like my 20's so I am willing to pay the price. You will also lose some in absolute handling performance as well. Think a little of your driving style and expectations before diving right into purchasing 20's. I don't think they are for everyone.

Nor Cal Turbo

I've got 20s on my C63 and I don't think the ride is all that bad. I'm also very used to driving performance cars and do not expect/want a plush ride. That said the 20s on my C63 ride better than my 19s on my old Porsche 996 turbo. I guess it's all perspective.

Bryanm.AMG

Yea I know NYC is a nightmare with the roads 😅

Bryanm.AMG

This is what I’m considering as well. I do drive relatively slow on the roads I know are crap. I’m in Houston, Texas, so these roads are certainly not the best, but not the worst either, especially Mr. NYC over here haha.

Bryanm.AMG

Im expecting a harsh ride, but as well am a little used to the harshness. Had 18’s on an e46 I was restoring a little while back before handing it off, which in the Houston streets were not very forgiving. Expecting something similar.

skullbox15

Are you set on 20" for aesthetic reasons or something else?

deadlyvt

I'm not sure I've seen a set of 20's on a w204 that look "right"
I think 19 is the biggest I would go with personally