01-11-2021, 09:56 AM | #1 |
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Performance and Weight. M3 and M4 - explained, Episode 01
Featured on BIMMERPOST.com
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heckyeahbro69518.00 solstice5459.00 Dzo76.00 Boomer 20191776.00 Scorp!on1514.50 agentrnge383.50 blackshan10.00 |
01-11-2021, 10:15 AM | #2 |
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- “In part faster than an M4 GTS”. A bit vague.
- “Lightened crankshaft” vs what? X3M or S55? Very nice to get a scale weight of the MT car and the confirmation of alu doors and hood. Appreciate the effort to make this video even if the execution is a bit lacking in some areas. Last edited by solstice; 01-11-2021 at 10:27 AM.. |
01-11-2021, 10:22 AM | #4 |
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If you are a weight purist get the MT and if you want performance get the competition. Interesting way to put it and explains a lot about the thought process behind this generation. I.e. weight matters less than resulting performance. Spend the budget and effort on performance for the competition even significant bracing etc. that add weight.
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01-11-2021, 10:24 AM | #5 |
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From the video it seems like they compared a fully loaded DCT F82 with an almost base, stripper spec version of the G82. I would say the weight gain is probably in the range of 60-100 kilos base car to base car, which would put it slightly above the E9x in terms of weight.
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01-11-2021, 10:32 AM | #6 | |
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57kg/125 lbs increase. If you spec. a stripper with CF seats I’m sure. Still better than some feared. Last edited by solstice; 01-11-2021 at 10:38 AM.. |
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01-11-2021, 10:32 AM | #7 | |
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01-11-2021, 10:36 AM | #8 | |
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01-11-2021, 10:40 AM | #9 |
never could compete with Lloyd Braun
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Plus the red G82 M4 still had full leather... I'm sure that adds *some* weight to the car. I really wish the power tailgate wasn't included in the exec. package, or that the laser lights were separate from the exec. I really just want the lights and heated steering wheel.
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01-11-2021, 10:46 AM | #10 | |
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I actually got the impression that weight was a big factor and that weight reduction measures was important also for this model. Considering how it has grown in size it was quite impressive that you can get a version only 34kg heavier than a F82. |
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01-11-2021, 10:49 AM | #11 |
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We've had a ton of discussion on the overall weight of the G80/G82 and concerns that this is approaching F90 M5 terriroty! BMW ///M division finally released this video to explain and compare against the F80/F82.
I'll let our other forum experts analyze how much the ZF8 and/or AWD will add. Overall I think this address most of our concerns!
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01-11-2021, 10:51 AM | #12 | |
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However a 125 lbs generational increase comp. to comp. is IMO still a good effort and should ease the mind of a few dooms day members talking 250 lbs plus increase. |
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01-11-2021, 10:54 AM | #13 |
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Surprising revelation here. <100 lbs weight increase although G82 with carbon buckets and manual transmission vs the F82 DCT. The G82 is a much larger and more capable car so this actually seems acceptable for the class.
I think we can extrapolate some here and add a smidge over 200 lbs for 8AT and xDrive meaning a G82 comp xDrive will weigh right about 3900 lbs with full tank of gas. |
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01-11-2021, 11:12 AM | #14 | ||
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01-11-2021, 11:13 AM | #15 |
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I'm glad we're (hopefully) starting to get some technical material from AG.
From the video: F82 Comp DCT on 20", likely fully loaded; 1,640 kg G82 RWD 6MT, 19/20", CF seats, full leather; 1,674 kg Full tank, which means ca. 59 litres for both vehicles. According to the data from the press release, a base German-spec 6MT G82 M4 weighs 1,700 kg (DIN, i.e. all fluids, 90% tank). Such car has basic LEDs, HiFi audio, memory seats, 18/19" rims, acoustic glass Base 2018+ 6MT F82 is 1,570 kg; DCT-equipped is 1,595 kg (DIN). Such car had adaptive LEDs, HiFi audio, electric cloth seats, 18" rims, no DDC, no CF driveshaft. My maths sucks, but if we compare apples to apples and calculate a DIN weight with empty fuel tank, then their F82 in the video would be approx. 1,596 kg and the G82 1,630 kg. Base F82 6MT 1,530 kg; F82 DCT 1,555 kg Base G82 6MT 1,660 kg; G82 Comp 1,685 kg, again all DIN w/o fuel. Add ca. 10 kg for the standard seats and you're at 1,64x kg. None of the G82 numbers add up. How is this optioned-out car lighter than a supposedly stripper model used for certification... Can't trust them manufacturers with these figures. Also, I'd like to find out the weight difference between the Getrag M-DCT and ZF 8HP. And no Al fenders on the new car? All in all, though, a lightweight 6MT G82 is still heavier than a loaded DCT F82.
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01-11-2021, 11:15 AM | #16 |
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Pleasantly surprised here... seeing how much more tire this new G chassis can fit seems like it will be an impressive track weapon after all!
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01-11-2021, 11:23 AM | #17 |
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The G82 shown with MT weighs 3,690 lbs. If I add 55 lbs. for the Comp with AT, 22 lbs. for the standard seats, and 20 lbs. for iron brakes, the total is 3,787 lbs. About 80 lbs. more than my current F32 440i with AT. Given the greatly increased power, and better handling, I can work with that.
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Last edited by Boomer 2019; 01-15-2021 at 12:13 PM.. |
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01-11-2021, 11:26 AM | #18 | |
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01-11-2021, 11:35 AM | #19 |
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Very cool I saw these on their instagram stories today.. its like they read these forums and address the elephant in the room first LOL
not sure if applicable, but i found the C&D testing of LCI F30 340 manual vs awd auto and they had the weight diff down to ~120lb or 55kg https://www.caranddriver.com/reviews...i-test-review/ https://www.caranddriver.com/reviews...e-test-review/ same comparison for F82 manual vs DCT they tested the weight to be 50lb diff fwiw
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01-11-2021, 11:38 AM | #20 | |
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The US curb weight is almost impossible to determine which version of the car the weight refers to as that requires the inclusion of optional equipment the manufacturer expects more than 33% of the cars to be sold with... We had a long, in detail, thread on curb weights back when the F8x was at the same stage as the G8x is now. US Curb and EU Kerb weights, an attempt at clarifying the differences. https://f80.bimmerpost.com/forums/sh...d.php?t=919364 Last edited by Boss330; 01-11-2021 at 11:58 AM.. |
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01-11-2021, 11:45 AM | #21 |
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Some notes & quotes:
This is Episode 1 of the series, focused on Performance & Weight. Quotes: - "the new cars will exceed all [performance] expectations" - "the M4 is a lot faster than its predecessor" - "and with cup tires in part faster than the legendary BMW M4 GTS" - "stiffened the bodywok locally both at the front and the rear" and these "measures represent a good weight investment" - "crankshaft [weight reduced by] 1.5kg which is in turn reflected in the response" - "M carbon bucket seats [...] 10kg less than the M Sports seats [for the pair]" - "Reduced the sound insulation to a minimum" Now we need to know the weight increase of ZF8 vs. Manual so we can compare the G82 Competition weight vs. F82 Competition weight (like-for-like).
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01-11-2021, 11:50 AM | #22 | ||
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US curb weights are a bit more complex. In depth look on curb weights in this thread back from when the F8x was being introduced: US Curb and EU Kerb weights, an attempt at clarifying the differences. https://f80.bimmerpost.com/forums/sh...d.php?t=919364 From commission regulation (EU) 1230/2012 on masses and dimensions: https://eur-lex.europa.eu/legal-cont...02&from=EN Quote:
So a base M3/4 curb weight in EU is heavier than if you spec optional CF bucket seats and CCB. So in the case of the M3/4, adding options can actually decrease the stated (EU) curb weight. Which is what we probably saw in the video. |
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