[MaybeanM5]

Has anyone had real world experience lining these two up ? It got me curious with the recent buzz around the 2.8 0-60 blast as reported by motor trend . I haven don't the break in service yet , but so far it feels slightly quicker than my m3 awd comp . *

[forcefed]

That 0-60 time is with a 1 foot rollout so basically 5-60mph, actual time would be 3.0-3.1.

[Rux]

If all things are equal, outdoor temp, elevation, tires, gas level, same driver then I would think the M3Cx would win. It is lighter by about 90 lbs. Must be all the shit they ripped out for the stylish iDrive 8.

[MaybeanM5]

Originally Posted by Rux

If all things are equal, outdoor temp, elevation, tires, gas level, same driver then I would think the M3Cx would win. It is lighter by about 90 lbs. Must be all the shit they ripped out for the stylish iDrive 8.

Isn't the m4 lighter ? I thought by maybe 200 lbs

[Draper]

The cars are the virtually the same, but the M4 might have a slight edge.

Based on M3/M4 MY23 specs, the M4 is 1850 kg and the M3 is 1855 kg.

Also, the roofline on the M4 is about 1.5" lower.

[Rux]

Originally Posted by MaybeanM5

Isn't the m4 lighter ? I thought by maybe 200 lbs

Originally Posted by Draper

The cars are the virtually the same, but the M4 might have a slight edge.

Based on M3/M4 MY23 specs, the M4 is 1850 kg and the M3 is 1855 kg.

Also, the roofline on the M4 is about 1.5" lower.

Using the NA numbers on the website. Might be different elsewhere.
M3 Comp. AWD 2023 vs M4 Comp. AWD 2022




But as I said. All things being equal. Which they never are.

[Draper]

Originally Posted by Rux

Using the NA numbers on the website. Might be different elsewhere.
M3 Comp. AWD 2023 vs M4 Comp. AWD 2022

2023 M4 specs aren't on the US site yet, so I was using 2023 numbers for both from the UK site.

2022 M3 weight was listed at 3,990lbs...so still heavier than the M4.

[Rux]

Originally Posted by Draper

2023 M4 specs aren't on the US site yet, so I was using 2023 numbers for both from the UK site.

2022 M3 weight was listed at 3,990lbs...so still heavier than the M4.

Hard to believe a 22 M3CX weighs 100lbs more than the 23. I feel like the same guy who jots down the HP numbers also writes the weights. M4 had no LCI or changes between the 22/23. So those numbers should be the same.

Anyway, does not matter. I agree. They are so close the differences are negligible.

[Vic55]

Clearly a crap shoot in the real world... whoever gets the jump will take off and hold. Whoever has their car in the right settings will be key also.

[Limegrntaln]

I've seen nothing to indicate that the 2023 will be 100 pounds lighter. You would need to remove alot of comfort items for the car to lose 100 pounds.

[Draper]

Originally Posted by Limegrntaln

I've seen nothing to indicate that the 2023 will be 100 pounds lighter. You would need to remove alot of comfort items for the car to lose 100 pounds.

I'm guessing in '23 they're using a different mix of options for the reported weight.

Maybe before they included exec + drive assist, and now those are excluded and CCBs were added.

Not hard to imagine a 100+ pound swing based on options.

[Limegrntaln]

Originally Posted by Draper

I'm guessing in '23 they're using a different mix of options for the reported weight.

Maybe before they included exec + drive assist, and now those are excluded and CCBs were added.

Not hard to imagine a 100+ pound swing based on options.

Yeah, even add CCBs and Carbon buckets and you only get like 45 pounds.

[Rux]

Originally Posted by Limegrntaln

Yeah, even add CCBs and Carbon buckets and you only get like 45 pounds.

I just copy pasted the specs from NA BMW site. If BMW is wrong, I would not be surprised.

[GixY2K]

Originally Posted by Rux

I just copy pasted the specs from NA BMW site. If BMW is wrong, I would not be surprised.

I just got off the BMWUSA site and they show 3840 for the M3CxD, and 3830 for the M4CxD. They don't mention the year model (???).

Granted, I bought the M4 because it was available at the time and coming off the delivering truck.

If availability was not an issue, I would have chosen the M3. All based on the similarities in performance/specs + having the convenience of a 4 door.

Now, what I DO NOT understand, is how a coupe is only (assuming the specs are accurate) 10lbs lighter than a sedan having 2 additional doors. Moreover, the two share the same exact exterior dimensions. And about the only specs that would negligibly affect performance are the headroom (assuming it directly affects roof height) and the minute rear weight bias on the M4.

Germans must have pull off a Hocus Pocus engineering crap designing these two... LOL!

So yeah, to answer the question, like mentioned already, both will perform the same (given all other variables equal).

[Rux]

Originally Posted by GixY2K

I just got off the BMWUSA site and they show 3840 for the M3CxD, and 3830 for the M4CxD. They don't mention the year model (???).

When you look at the specs you have to change the model to M3 Comp xDrive.



The M3 is 3840lbs The M3Cx is 3890lbs. According the the website.

[Rux]

Originally Posted by GixY2K

Now, what I DO NOT understand, is how a coupe is only (assuming the specs are accurate) 10lbs lighter than a sedan having 2 additional doors. Moreover, the two share the same exact exterior dimensions. And about the only specs that would negligibly affect performance are the headroom (assuming it directly affects roof height) and the minute rear weight bias on the M4.

If you select M3Cx and M4Cx on the NA site, it states the M3Cx is 89 lbs lighter compared to the M4Cx. They are not the "Exact" same dimensions. Whatever this is called, "track" maybe?

M3Cx

M4Cx


Its a German mystery. iDrive8 weighs less? More bracing in the M4? Who the hell knows. I have not completely dug through The M3/M4 Technical Manual but I would put more confidence in that as opposed to the website.

[VIERsr]

According to German sheets, nothing has changed with MY2023, the M4 is 5 kg lighter than the M3 and xDrive adds 50 kg to both.
The M4 also has some sound insulation material deletion.

[Draper]

Originally Posted by Rux

If you select M3Cx and M4Cx on the NA site, it states the M3Cx is 89 lbs lighter compared to the M4Cx. They are not the "Exact" same dimensions. Whatever this is called, "track" maybe?

Again, you're comparing the specs for MY23 G80 to MY22 G82.

If you compare the same model year for an apples-to-apples comparison, the 10lb delta in favor of the M4 remains.

iDrive 7 does not weight 100lbs.

[Rux]

Originally Posted by Draper

Again, you're comparing the specs for MY23 G80 to MY22 G82.

If you compare the same model year for an apples-to-apples comparison, the 10lb delta in favor of the M4 remains.

iDrive 7 does not weight 100lbs.

Again, 2023 M4Cx No changes from the 22. 2023 M3 had its LCI.
But sure, whatever you said was right. No fucks given on my end sir.
Looks like you ordered one of each. Why don't you weight them both and report back the results. Or don't...

[Draper]

Originally Posted by Rux

Again, 2023 M4Cx No changes from the 22. 2023 M3 had its LCI.
But sure, whatever you said was right. No fucks given on my end sir.
Looks like you ordered one of each. Why don't you weight them both and report back the results. Or don't...

Relax, dude.

This is a versus thread, so comparisons of weight are fine.

The difference between the 2 cars is still 10lbs, so either BMW is measuring the cars differently now, or the weight difference is not related to LCI-related changes.