03-31-2023, 07:55 AM | #45 | |
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03-31-2023, 08:00 AM | #46 |
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Important to note that the times you are referencing are not an apples-to-apples comparison. The 7:28 from the M4xDrive is for the AM&S/SA supertest lap length, which omits the test day pit-in-pit-out section, while the RS3's 7:40 is for a full lap length. There is a ~5 sec difference between the two. Taking this into consideration, the M4xDrive is still faster by ~7 seconds, which is expected given it's substantial power advantage (27% more power) over the RS3 and the M4xDrive being fitted with the optional PSC2.
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03-31-2023, 08:06 AM | #47 | |
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Drag = Cd x Afrontal EDIT: I was going with the info I recalled from the F8X generation, where both the M3 and M4 had the same Cd. However, while looking up the frontal area for the G8X models I found the info is not as crisp. The G80 is quoted with a "range" Cd of 0.33-0.34 while the G82 is "fixed" at 0.34. The M3 still has a greater frontal area but BMW it is not clear which one has a lower total drag. From the G8X Technical Training doc:
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03-31-2023, 08:27 AM | #48 | |
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03-31-2023, 08:32 AM | #49 |
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I am curious about that too. First time a see a "range" Cd specified for a given car
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03-31-2023, 08:37 AM | #50 |
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I think my initial gut reaction was right...has to be the radar cruise control blob that goes up front. Note the M4 you posted was base, which, presumably with a manual, wouldn't have that feature. Right?
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03-31-2023, 08:48 AM | #51 | |||
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It's not a debate at this point. But not entirely unexpected when something makes the front page and people who have not been following along show up with little context and preconceived notions. Quote:
You're also a year and half late to the debate, but the conclusive conclusion on the G80.G82 forum including from actual owners is that buying the AWD version is better in all circumstances except: - if you want a manual (and obviously only because BMW doesn't offer AWD with manual) or - if you're routinely pushing it over 130 mph (about the point where RWD Competition is finally able to get more power down; and that matters more to you than anything below 130 mph).
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03-31-2023, 08:59 AM | #52 | |
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I have a G80 6MT. It’s an effort to go fast. I can’t imagine anyone with AWD version automatic not driving fast all the time or launching the car. |
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03-31-2023, 09:01 AM | #53 | |
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I doubt it is the cruise control radar that makes the difference since it is also available on the G82. The drag numbers are the exact same for the base M4 and M4competition
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03-31-2023, 09:29 AM | #55 | |
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03-31-2023, 10:16 AM | #57 |
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03-31-2023, 10:47 AM | #58 |
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We may not own supercars, but for us G8X owners, we are very fortunate to own a super...car. I have a RWD, so my 0 to 60 is somewhere in the mid to high 3s, and my car still feels bananas as it claws for traction. I love it. But for you X-drive owners, 0 to 60 in the high 2's is just ridiculous. Well done, BMW. Last edited by KevinGS; 04-01-2023 at 12:10 PM.. |
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03-31-2023, 10:53 AM | #59 |
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This is a spec sheet, not a review.
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03-31-2023, 11:13 AM | #60 | |
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03-31-2023, 12:51 PM | #61 | |
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maybe 0.33 without M Performance parts, 0.34 with the front lip and rear spoiler but then i expect the M4 to have a lower Cd without MPP but it really could be as simple as narrower option tires for 0.33 and wider 275 285 for 0.34 Last edited by G30M; 03-31-2023 at 12:56 PM.. |
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03-31-2023, 01:35 PM | #62 | |
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Maybe if they did, I’d pay them for a sub. Road and track is actually informative about so many things. C&D just seems like a magazine filled with nothing but opinion pieces and soft ads. I agree your argument has a logic to it, but it also feels lazy. Just control for tires and declare the winner please, it’s not THAT expensive. consumer reports buys everything they test. |
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03-31-2023, 01:54 PM | #63 | |
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03-31-2023, 02:05 PM | #64 |
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03-31-2023, 02:40 PM | #65 | |
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03-31-2023, 03:12 PM | #66 |
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Agree, I'm not saying what is better just why they do it. Be interesting if they did their normal test then a sidebar with common car guy changes.
Might be a great way to limit the BS in many aftermarket performance improvement claims. A lot of guys will find out some of these products make some good noises but actually produce zero performance improvement. As for CR have to think they don't by a M440 then take off the tires & put on Cup 2 to get the best performance.
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