Weight Comparison Thread

[HBspeed]

DIN curb weight (preliminary as they call it):

E82 1M at 1,495 kg. = 3,296 lbs.

E46 M3 at 1,474 kg. = 3,250 lbs.

E92 M3 at 1,605 kg. = 3,538 lbs.


EU standard weight:

E82 1M at 1,570 kg. = 3,461 lbs.

E46 M3 at 1,549 kg. = 3,415 lbs.

E92 M3 at 1,680 kg. = 3,704 lbs.


EU is DIN + 68kg driver and 7kg luggage.

[Raine]

Cars aren't getting any lighter.

[JB135MDCT]

Originally Posted by Raine

Cars aren't getting any lighter.

Z2M will be lighter.

[Robert]

They will and they better be. I have a feeling BMW has weight saving techniques they are saving for the next generation vehicle that they can't or aren't willing to splurge on outgoing models.

[Pete_vB]

From the spec thread, these can't both be right...

Unladen Weight DIN:
1M: 1495 kg
135i: 1455 kg

Weight US:
1M: 3296 lbs
135i: 3373 lbs

So the 1M is 40 kg (88 lbs) heavier than the 135i in europe, but 77 lbs lighter in the US? One of these "preliminary" numbers is well off...

[JB135MDCT]

Logic sais 1M can't be lighter. extra radiator, heavier wheels/tires, brakes and muffler. More sheet metal and M3 strut brace.

It does have a lighter roof though.

[Pete_vB]

Originally Posted by JB135MDCT

Logic sais 1M can't be lighter. extra radiator, heavier wheels/tires, brakes and muffler. More sheet metal and M3 strut brace.

It does have a lighter roof though.

...and hollow swaybars, and a lighter dual-mass flywheel, and alu subframes, etc. I also suspect the muffler might be lighter. I worry that you're correct, however...

[as7920]

Originally Posted by JB135MDCT

Logic sais 1M can't be lighter. extra radiator, heavier wheels/tires, brakes and muffler. More sheet metal and M3 strut brace.

It does have a lighter roof though.

Isn't a lot of the replacement stuff from M3 aluminum as opposed to steel and the wheels don't necessarily have to be heavier?

Also 1M has metal roof as standard and not moonroof which is an additional saving as mentioned in the press release.

[marcel b]

can it be that the 135i has a moonroof standard in the US? In Europe it doesn't, so this could make the difference in published weight of the 135i.

[Genericuser1]

Originally Posted by Raine

Cars aren't getting any lighter.

Depends on the manufacturer. Mazda is dropping car weight by 10-20% on new models. Next MX5 should be 2,200lbs down from 2,450.

[JB135MDCT]

Originally Posted by Pete_vB

...and hollow swaybars, and a lighter dual-mass flywheel, and alu subframes, etc. I also suspect the muffler might be lighter. I worry that you're correct, however...

135 has aluminum subframes. muffler is much larger. Glad to be wrong in this case

Originally Posted by as7920

Isn't a lot of the replacement stuff from M3 aluminum as opposed to steel and the wheels don't necessarily have to be heavier?

Also 1M has metal roof as standard and not moonroof which is an additional saving as mentioned in the press release.

19" wheels are heavier than 18". Unless the 19s are forged, they might be lighter. I allready said the roof is lighter in the 1M.

[HBspeed]

The big question is how does the 1M manage to be 46 lbs. heaver than the E46 M3 despite being a more compact car, and having an aluminum block engine?

[Pete_vB]

Originally Posted by HBspeed

The big question is how does the 1M manage to be 46 lbs. heaver than the E46 M3 despite being a more compact car, and having an aluminum block engine?

I suspect 8 airbags, a drive train rated for 100 more foot pounds of torque and 1.4" larger brake rotors pretty much did the trick...

[marcel b]

Originally Posted by Pete_vB

I suspect 8 airbags, a drive train rated for 100 more foot pounds of torque and 1.4" larger brake rotors pretty much did the trick...

don't forget the passive security.