Will these tires from my 2013 M6 fit the 20" CP wheels for an M4?

[Db750]

Hey guys quick question here. I am wanting to trade in our 2013 M6 convertible for a 2018 M4 coupe with the competition package. I have got several sets of tires for the M6 that have barely been used and I need advice from those more knowledgeable than myself as to if they will work on the 20" style 666 wheels. As I'm sure some of you know little things like this can add up and help me justify this purchase to my lovely wife =). I am pretty sure the answer is yes, but just want to confirm!

Set #1 is a staggered set of the new Michelin Pilot Sport 4s in 265/35 ZR20 and 295/30 ZR20.

Set #2 is a square setup I used last winter. All four measure 255/35 R20.

Please let me know if these will work on the M4 style 666 wheels and hopefully this will bring me one step closer to a beautiful new M4!! Thank you so much for any help it is greatly appreciated =)

[silvergray545]

Set one, yes. Set two, I believe a 255 would be really stretched on the rears. I probably wouldn't run them.

[Db750]

Originally Posted by silvergray545

Set one, yes. Set two, I believe a 255 would be really stretched on the rears. I probably wouldn't run them.

I really appreciate the reply! The Michelin were the biggest concern so that is a good thing! The 255s we actually used on the m6 all last winter (I bought them for that car based off tire rack recommendation) and they were great! They were definitely stretched on the rears but we didn't have any problems at all! Local friends thought it sounded too small for the m6, but whoever I talked to at tire rack as well as the guy that installed them both said it was fine. They were about 1/4 the cost of the Michelin so not a big deal either way though!

I really appreciate the reply!