Will fitting a square wheel setup to an M140i cause issues??

[FakeCarGuy]

Because the front and rear have different rolling diameters, I’ve been advised that fitting a square setup will throw-off the car’s calculations and computers and can hamper the driving dynamics of the car, with the traction/stability control becoming intrusive and confused.

However, is there actually any truth to this?

Reason I ask is because i’m in the market for a 340i m sport shadow edition - but they’re rare as fk - and i’m really struggling to find one that I like in my price range - so now i’m starting to look at the m140i now - but i’m only really interested if I can rock a square tyre setup.

[ARHarh]

No idea, But being old I do remember the development of the wheel, and the team soon gave up on the square one

[Pica-Pica]

ARHarh said:

No idea, But being old I do remember the development of the wheel, and the team soon gave up on the square one

To be expected. Lazy Sunday afternoon?

[thebraketester]

FakeCarGuy said:

but i m only really interested if I can rock a square tyre setup.

Why?

[danb79]

FakeCarGuy said:

Because the front and rear have different rolling diameters, I ve been advised that fitting a square setup will throw-off the car s calculations and computers and can hamper the driving dynamics of the car, with the traction/stability control becoming intrusive and confused.

However, is there actually any truth to this?

Reason I ask is because i m in the market for a 340i m sport shadow edition - but they re rare as fk - and i m really struggling to find one that I like in my price range - so now i m starting to look at the m140i now - but i m only really interested if I can rock a square tyre setup.

Utter bks

I run a square set up on my E81 130i and on my F31 touring - both should have staggered set ups; but prefer square as I find it better for handing, ride etc

Doesn’t matter if it s RWD or xDrive - as long as the tyres are the correct sizes, you’ll have zero issues

Plus you tend to find the dedicated winter wheels for the car(s) will always be a square set up too

Edited by danb79 on Sunday 6th July 16:28

[MitchT]

Tens (if not hundreds) of millions spent on R&D to design a car when all they had to do was ask some randoms on the internet what the optimum setup would be!