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2019+ BMW 3 AND 4-SERIES FORUMS (G2x Generation) General G20 Sedan / G22 Coupe / G26 Gran Coupe Discussions M340i Weight Increase

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      04-23-2019, 11:53 AM   #45
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Quote:
Originally Posted by BigSky702 View Post
Supposedly a 25% reduction in weight with the B58... *IF* that’s true!
Going to need a tune to balance out that weight!! Both HP and torque need an increase!!

OP: Are your stats referring to “similarly equipped “ 340ix and m340ix?
Keep in mind the new gen has a lot of standard items that were optional before.
I was writing about my concern that the true 'M' 3/4 might have to follow porsche's weight increase, not the siblings...so, I don't know about the 340 or m340 but xi drive will increase weight without some compensatory weight reduction, like the M5 demonstrated...my most recent reading of Motor Authority indicated a reduction of 140lbs, but, who knows for sure...
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      04-23-2019, 01:14 PM   #46
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Quote:
Originally Posted by BimmerFix View Post
Honestly that's insane. This whole time I thought It was lighter as well. Most the articles I read mentioned the 121 lbs weight reduction. But it's all Hoax , shame on you BMW ! I hope some of those numbers are wrong, because if my new M340i is 154lbs more than last years 340i , I'll snap
The weight reduction is on 330i not M340i.
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      11-21-2019, 08:51 AM   #47
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I'm not surprised by weight increase as it is significantly larger than before. It is officially 2/10th of a second faster in 2WD than 340i, didn't feel much difference when I drove one as I have MPPSK so I have 369 lb ft, which is the same as M340i but less horsepower. So the additional heft may cancel out some of that.
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      11-21-2019, 12:19 PM   #48
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M340i is significantly faster than F30 340i period regardless of F30 being lighter.
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      11-21-2019, 02:20 PM   #49
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Quote:
Originally Posted by EXE46 View Post
M340i is significantly faster than F30 340i period regardless of F30 being lighter.
The difference is less with mppsk. Comparing to stock F30 yes.
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      11-21-2019, 07:43 PM   #50
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^
You're referring to " seat of the pants" do you have numbers from reputable sources to back that up? 1/4 miles times etc. We already know the M340i's performance is more than what the its spec would have you believe. It's significantly faster than the C43 AMG for example, same goes for all it's direct competitors regardless of their stock performance specifications.
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      11-22-2019, 11:34 AM   #51
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Quote:
Originally Posted by EXE46 View Post
^
You're referring to " seat of the pants" do you have numbers from reputable sources to back that up? 1/4 miles times etc. We already know the M340i's performance is more than what the its spec would have you believe. It's significantly faster than the C43 AMG for example, same goes for all it's direct competitors regardless of their stock performance specifications.
Yes BMW says with mppsk the car is 2/10 sec faster so 4.6 vs 4.4 for m340i official bmw numbers
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      02-06-2020, 06:30 AM   #52
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Quote:
Originally Posted by RPM1123 View Post
Anyone notice how the M340i has silently gotten a lot heavier? bmwusa.com specs say the M340xi curb weight is 3968lbs. BMW seems to be bragging about the new CLAR architecture reducing weight in press releases, but in the end they still went up.

Some stats. F30 curb weights from edmunds.com, G20 curb weights from bmwusa.com. All automatic weights.
  • F30 330i: 3541 lbs
    G20 330i: 3589 lbs (+41lbs)
  • F30 330xi: 3706 lbs
    G20 330xi: 3772 lbs (+66lbs)
  • F30 340i: 3695 lbs
    G20 M340i: 3849 lbs (+154lbs)
  • F30 340xi: 3820 lbs
    G20 M340xi: 3968 lbs (+148lbs)
I'm really struggling to find consistent information on this. I currently own F30 340i (MT) and am considering G20 330i but only if it's lighter! So far I have found weights online for my current 340i of 1605kg, 1540kg & 1671kg!!! Problem is that BMW UK are giving 'unladen weight' which I assume is different to 'curb weight'. I assume the latter includes a driver of average weight and a full tank of fuel!? But I'm not sure! Surely there should be a single legal standard way of measuring the weight of a car so we all know exactly what the score is!?

I guess the only sure way to compare the weights of two cars is to find both cars on the same source website (https://www.ultimatespecs.com/car-sp...-LCI-340i.html) although I find the difference here hard to believe as it gives a curb weight for each with a 160kg difference:

F30 340i MT 1605kg
G20 330i 1445kg

That's a heck of a difference even taking into account the two cylinder drop in engine size!!

Last edited by nozydog; 02-06-2020 at 06:39 AM..
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      02-06-2020, 11:44 AM   #53
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Quote:
Originally Posted by nozydog View Post
I'm really struggling to find consistent information on this. I currently own F30 340i (MT) and am considering G20 330i but only if it's lighter! So far I have found weights online for my current 340i of 1605kg, 1540kg & 1671kg!!! Problem is that BMW UK are giving 'unladen weight' which I assume is different to 'curb weight'. I assume the latter includes a driver of average weight and a full tank of fuel!? But I'm not sure! Surely there should be a single legal standard way of measuring the weight of a car so we all know exactly what the score is!?

I guess the only sure way to compare the weights of two cars is to find both cars on the same source website (https://www.ultimatespecs.com/car-sp...-LCI-340i.html) although I find the difference here hard to believe as it gives a curb weight for each with a 160kg difference:

F30 340i MT 1605kg
G20 330i 1445kg

That's a heck of a difference even taking into account the two cylinder drop in engine size!!
The engine is also not the only thing that's different. With less power, you can get away with lighter transmission, smaller axles, smaller differential, etc.. Also, the 330i will have less standard equipment than a 340i most likely.

The only way to know is by weighing your car. Also, does it really matter? If you drive the car and it drives the way you want, does it really matter how much it weighs? We all want light cars, but I have a feeling most people don't realize how much weight options add to a car.
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      02-06-2020, 01:18 PM   #54
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The G20 does not feel or drive like a heavy car, if you want a car that feels lighter, get a 2 series. The M5 is heavy, though powerful but people are not dissuade by the heft. 3 series has never felt or drove like a heavy car even when we had versions with less than 200 hp.
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      02-06-2020, 05:35 PM   #55
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Quote:
Originally Posted by nozydog View Post
I'm really struggling to find consistent information on this. I currently own F30 340i (MT) and am considering G20 330i but only if it's lighter! Surely there should be a single legal standard way of measuring the weight of a car so we all know exactly what the score is!? …...

F30 340i MT 1605kg
G20 330i 1445kg

That's a heck of a difference
From BMW 'release' material for base spec' models to DIN/EU.

F30 340i RWD; Weight, unladen, to DIN/EU kg 1530 / 1605 (MT).
G20 330i RWD; Weight, unladen, to DIN/EU kg 1470 / 1545 (Auto).
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      02-06-2020, 08:47 PM   #56
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Quote:
Originally Posted by BigSky702 View Post
That’s not cool. I thought it was a weight reduction of 121 lbs. (??).

I think the diesel version will have the biggest reduction.

Found this on jalopnik:



So get a RWD white car with NO options?! G80 will probably be heavier too, but close to 500HP?! The F90 is 80 lbs lighter than predecessor!
Excuse my ignorance but why would a white car weigh less ? And by how much?
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      02-06-2020, 08:58 PM   #57
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Quote:
Originally Posted by Red Bread View Post
Little bit of a moving target. The 3er has become increasingly larger, while I have not. So I bought a lighter, smaller car that's still available with a manual. The horror is that it's fwd.

The upside is that a GTI is $20k cheaper than a 330i, so with the money saved, my 550/575 manual fund has been getting much better contributions.
After 10k miles, the size and weight of the G20 is starting to bother me a bit. Everything else about the car is great. If the next 3 series gets even bigger I’m out for good. How do you compare the G20 steering / handling vs the GTI? Obv GTI must be much more fun to toss around and zip through traffic / parking lots / etc.
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      02-06-2020, 09:04 PM   #58
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Quote:
Originally Posted by EXE46 View Post
The G20 does not feel or drive like a heavy car, if you want a car that feels lighter, get a 2 series. The M5 is heavy, though powerful but people are not dissuade by the heft. 3 series has never felt or drove like a heavy car even when we had versions with less than 200 hp.
This is true and a very fair point. Has anyone driven the new Volvo S60? Car feels like it weighs 4,500 lbs. (and not in a good way) The 330 *feels* like it weighs less than 3,500 lbs.

My main gripe is the size. I haven’t been able to adjust to how big this car has become. It’s hard to zip through traffic and just toss it around. I even feel it while parking. It’s too damn big.
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      02-06-2020, 09:13 PM   #59
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Quote:
Originally Posted by alpinewhite3 View Post
Quote:
Originally Posted by Red Bread View Post
Little bit of a moving target. The 3er has become increasingly larger, while I have not. So I bought a lighter, smaller car that's still available with a manual. The horror is that it's fwd.

The upside is that a GTI is $20k cheaper than a 330i, so with the money saved, my 550/575 manual fund has been getting much better contributions.
After 10k miles, the size and weight of the G20 is starting to bother me a bit. Everything else about the car is great. If the next 3 series gets even bigger I’m out for good. How do you compare the G20 steering / handling vs the GTI? Obv GTI must be much more fun to toss around and zip through traffic / parking lots / etc.
I haven't driven a G20. Compared to our previous F30, I'm not sure that I'd give any positives to it over the GTI in terms of steering or handling.

I'd assume that the G20, especially with a limited slip is a good improvement over the F30, and I don't think it gained much weight, so probably all good changes.

There are certainly times that I miss rwd, and with the comeback of the mechanical LSD to BMW, if they made a 175", 3,200 pound sedan with an available manual, I'd come right back. But they're not going to.

I'm still holding out hope that Porsche will eventually build the smaller sedan they've threatened for years, but suspect Audi won't let them.
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      02-07-2020, 06:20 PM   #60
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What is the new smaller "Mini" version of bimmer called? That "might" be an answer, but it is probably just a little too small.
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      02-07-2020, 07:27 PM   #61
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Quote:
Originally Posted by RPM1123 View Post
I just specced an M550xi to be roughly equivalent to my $70k M340i (driving assistance plus, heated seats, premium package) and it came to ~79k. Even assuming a moderate 4% discount the payment is only $100 more than what my M340i payments will be. My M340i has $1.5k worth of carbon fiber bits on it though, take those off and the difference gets slightly larger.

My brain hurts now. This doesn't make sense. I know the M550xi will get a price bump with the coming LCI, but the price disparity between a 5 series with a V8 and a 3 series with an I6 should be a lot larger and now has me questioning my decision.
You don't want a V8 5 series. They drive with the poise of your grandfather's Buick.
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      02-07-2020, 07:45 PM   #62
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Originally Posted by NewM3driver View Post
You don't want a V8 5 series. They drive with the poise of your grandfather's Buick.
Ditto. The 5’er is approaching 4500 lbs....it can’t defy the law of physics. Unless you’re doing 100% highway cruising, good luck piloting that ship around town.
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      02-08-2020, 09:00 AM   #63
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I've had many 5 series. The E39 was the last 5er that didn't 'feel' heavy. Weight really IS the enemy and where that weigh is carried in the car matters too. If you have ever driven a hard top convertible..... top up and top down are different worlds.

Thats why the last M3 axed the sunroof and fitted a carbon fiber roof. That makes a huge difference. The carbon fiber drive shaft not so much.
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      02-08-2020, 10:15 AM   #64
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Quote:
Originally Posted by HighlandPete View Post
From BMW 'release' material for base spec' models to DIN/EU.

F30 340i RWD; Weight, unladen, to DIN/EU kg 1530 / 1605 (MT).
G20 330i RWD; Weight, unladen, to DIN/EU kg 1470 / 1545 (Auto).
Thanks Pete that's some useful info I couldn't find! So spec for spec should be around 60kg lighter which is good to know!

I thought the 1445kg given on my source site for the 330i seemed a bit light, I reckon it's an error that should been 1545.

Last edited by nozydog; 02-08-2020 at 11:21 AM..
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      02-08-2020, 11:29 AM   #65
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Quote:
Originally Posted by upsidedownfunnel View Post
The engine is also not the only thing that's different. With less power, you can get away with lighter transmission, smaller axles, smaller differential, etc.. Also, the 330i will have less standard equipment than a 340i most likely.

The only way to know is by weighing your car. Also, does it really matter? If you drive the car and it drives the way you want, does it really matter how much it weighs? We all want light cars, but I have a feeling most people don't realize how much weight options add to a car.
True and although the 320d I was given to test felt bigger, it did drive very well indeed and felt instantly sharper at the front end than my F30 340i... ok so it's a substantially lighter engine but I'd be going for a 330i which has a very similar weight to the 320d. (Here in the UK it seems all the demonstrators are diesel which is a real drag)
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      09-03-2023, 10:00 PM   #66
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Quote:
Originally Posted by RPM1123 View Post
Anyone notice how the M340i has silently gotten a lot heavier? bmwusa.com specs say the M340xi curb weight is 3968lbs. BMW seems to be bragging about the new CLAR architecture reducing weight in press releases, but in the end they still went up.

Some stats. F30 curb weights from edmunds.com, G20 curb weights from bmwusa.com. All automatic weights.


F30 330i: 3541 lbs
G20 330i: 3589 lbs (+41lbs)



F30 330xi: 3706 lbs
G20 330xi: 3772 lbs (+66lbs)



F30 340i: 3695 lbs
G20 M340i: 3849 lbs (+154lbs)



F30 340xi: 3820 lbs
G20 M340xi: 3968 lbs (+148lbs)
Another data point:
https://youtu.be/5GaSfd7NCQE?si=28lwrsivIPmi8r8D
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