[yo4]

Hello all,
The Z4 that goes into production on March 1, 2024, may be a special model. Because it has 20-inch rear wheels. The front wheels are 19 inches and the rear wheels are 20 inches. What is this combination? Yes, it's the same as the M model.

[Horseman]

All Z4 models have different sized rear to front.

[Bimmerfun82]

Originally Posted by Horseman

All Z4 models have different sized rear to front.

You sure? Mine aren’t staggered.

Where did this info about staggered come from…?

[RigaTony1982]

Originally Posted by Bimmerfun82

You sure? Mine aren’t staggered.

Where did this info about staggered come from…?

All the standard options are staggered. 255 front, 275 rear.

[Bimmerfun82]

Originally Posted by RigaTony1982

All the standard options are staggered. 255 front, 275 rear.

That’s tire width. OP was referring to wheel sizes. In my mind staggered is different wheel sizes because almost every car I’ve owned has wider rear tires.

[JustinHEMI]

All I know is that manual Z4 is supposed to go into production 3/24, which is why I'm lurking this forum. If that's true, manual Z4 M40i will likely be my next car. I highly doubt a full M version is coming.

[Bimmerfun82]

Originally Posted by JustinHEMI

All I know is that manual Z4 is supposed to go into production 3/24, which is why I'm lurking this forum. If that's true, manual Z4 M40i will likely be my next car. I highly doubt a full M version is coming.

Good to see you lurking here. A manual bimmer weighing <3400 lbs with >380 HP is the stuff of legend. It doesn’t need to be a full-blown M car to achieve great status along these lines… plus, with aftermarket wheels, springs, etc., for a reasonable price it could be taken to the next level.

[JustinHEMI]

Originally Posted by Bimmerfun82

Good to see you lurking here. A manual bimmer weighing <3400 lbs with >380 HP is the stuff of legend. It doesn’t need to be a full-blown M car to achieve great status along these lines… plus, with aftermarket wheels, springs, etc., for a reasonable price it could be taken to the next level.

Yep I've just been waiting for a manual version due to my Z4MC. I don't see that this "needs" a full M version per se, as you noted. It's "just as good" in its own right from every video I watch.

[StanDiego]

Originally Posted by Horseman

All Z4 models have different sized rear to front.

...but not different wheels diameters. 19 front, 20 rear caught my attention.

[Westside Guy]

Originally Posted by yo4

Hello all,
The Z4 that goes into production on March 1, 2024, may be a special model. Because it has 20-inch rear wheels. The front wheels are 19 inches and the rear wheels are 20 inches. What is this combination? Yes, it's the same as the M model.

What was your source for the 20 inch rear wheels?

[RigaTony1982]

Originally Posted by Bimmerfun82

That’s tire width. OP was referring to wheel sizes. In my mind staggered is different wheel sizes because almost every car I’ve owned has wider rear tires.

Guess I've seen staggered used in both scenarios, wheels and/or tires.

[GerryC]

Originally Posted by Bimmerfun82

That’s tire width. OP was referring to wheel sizes. In my mind staggered is different wheel sizes because almost every car I’ve owned has wider rear tires.

You are correct. While they are the same diameter, they are different widths (wheels, not just tires.) Mine are 19" x 9.0" front and 19" x 10.0" rear.

All my Z4s (I've had one of each gen) and one 330i had staggered setups with different widths. And there are a few cars out there with different diameters front to rear. All my other cars (about a dozen) had square setups - all 4 wheels and tires were the same size.

[BMWGirlFL]

Staggered on Concept Coupe.
https://www.press.bmwgroup.com/globa...on-four-wheels

[Westside Guy]

Originally Posted by BMWGirlFL

Staggered on Concept Coupe.
https://www.press.bmwgroup.com/globa...on-four-wheels

The BMW press release says, "The exclusive light-alloy wheels, measuring 20 inches at the front and 21 inches at the rear axle".

yo4 posted, "The Z4 that goes into production on March 1, 2024, may be a special model. Because it has 20-inch rear wheels. The front wheels are 19 inches and the rear wheels are 20 inches.".

[Bimmerfun82]

Originally Posted by Westside Guy

The BMW press release says, "The exclusive light-alloy wheels, measuring 20 inches at the front and 21 inches at the rear axle".

yo4 posted, "The Z4 that goes into production on March 1, 2024, may be a special model. Because it has 20-inch rear wheels. The front wheels are 19 inches and the rear wheels are 20 inches.".

...which OP was indicating there will be an M model like the M3/4 setup. I highly doubt it... especially without links to some sort of press release or insider information

[BMWGirlFL]

Originally Posted by Westside Guy

The BMW press release says, "The exclusive light-alloy wheels, measuring 20 inches at the front and 21 inches at the rear axle".

yo4 posted, "The Z4 that goes into production on March 1, 2024, may be a special model. Because it has 20-inch rear wheels. The front wheels are 19 inches and the rear wheels are 20 inches.".

20" on G29 concept. 19" offered. https://www.press.bmwgroup.com/globa...on-four-wheels

My special model guess is coupe. Next guess would be new wheel option for existing model(s).

[Bimmerfun82]

Originally Posted by BMWGirlFL

20" on G29 concept. 19" offered. https://www.press.bmwgroup.com/globa...on-four-wheels

My special model guess is coupe. Next guess would be new wheel option for existing model(s).

Yep. Would be great. Although the real benefit for the coupe is stiffness and performance. Not sure it’s worth it without a true M suspension and chassis setup even if it still has the B58. The use case is more for colder environments or cities?

[BMWGirlFL]

Originally Posted by Bimmerfun82

Yep. Would be great. Although the real benefit for the coupe is stiffness and performance. Not sure it’s worth it without a true M suspension and chassis setup even if it still has the B58. The use case is more for colder environments or cities?

My coupe guess is very limited production.

[dholaday]

Originally Posted by GerryC

You are correct. While they are the same diameter, they are different widths (wheels, not just tires.) Mine are 19" x 9.0" front and 19" x 10.0" rear.

GerryC
Where did you get info on wheel widths? I want to learn what Mine are.

Thanks
Duncan

[SpeedyATL]

Originally Posted by dholaday

GerryC
Where did you get info on wheel widths? I want to learn what Mine are.

Thanks
Duncan

If you have the factory M40 rims, they are the same regardless of whether they are 18" or 19" - 9" and 10" wide.

If you have a 30i, the standard wheel is 18" and are 8" and 9" wide while the 19" are the same 9" and 10" as the M40.

Also, you can tell from checking your tire widths if you have the factory tires or the exact same as the factory tires. The narrow set are 225 front and 255 rear. The wider set are 255 front and 275 rear.

Or, you can simply measure the width (cross section) of the wheel through the spokes....

[Bimmerfun82]

It’s on the sidewall of your tires. I learned this fun fact at 14 years old. Everyone should know this.

[GerryC]

Originally Posted by dholaday

GerryC
Where did you get info on wheel widths? I want to learn what Mine are.

Thanks
Duncan

The Pricing Guide. It's been posted here. Here's the wheel section: