

Thread Tools  Search this Thread 
11222013, 09:46 AM  #23  
Captain
409
Rep 977
Posts 
Quote:
Likewise, I *HOPE* they publish a time of 4.3 because in reality that should translate to 3.8 roughly 

Appreciate
0

11222013, 09:56 AM  #24 
CommanderInChief
2092
Rep 8,905
Posts
Drives: 2023 M2 Coupe, 2020 GLE 450
Join Date: Nov 2005
Location: Lake Oswego, OR

Pre production published acceleration times
Yes indeed, this is from 4/07:
__________________
Greg Lake Oswego, Oregon, USA 2023 M2 Coupe  Brooklyn Grey/Cognac/CF, 6MT; 2020 MB GLE 450 
Appreciate
0

11222013, 10:22 AM  #25 
Colonel
1791
Rep 2,995
Posts 
It wasn't a joke. Those 060 times are normal, nonrollout, nontotally abusive 060 times achievable by a reasonable driver on normal conditions. Consistently...
Now, if you want a 060 time by an exceptional driver, in the most ideal traction environment, with a 1 foot rollout and total mechanical abuse....and that might have taken 10 tries to accomplish... Sure, you can say the Germans are conservative. 
Appreciate
0

11222013, 12:43 PM  #26 
Captain
409
Rep 977
Posts 
Joe, I agree with you, your points are obvious. However, it is assumed by most that the 060 times are the maximum achievable, when we know that its a conservative figure published by the company. So it is a joke if you think that the published or official car manufacturer times are representative of peak times, which is what people are taking them to be. People are comparing two different figures. They are taking an m4 time quoted by a company rep, and comparing that to a 'best of' time pulled by a magazine on an e92. The assumption is that the rep is quoting the conservative time, so it will be under that.

Appreciate
0

11222013, 12:56 PM  #27 
Colonel
2191
Rep 2,557
Posts 
For the US i think if the vehicle exceeds 18mpg combine no guzzler tax... case in point the 420 hp 5.0 in the mustang gets 15/26 in manual with no guzzler tax and the 662HP gt500 gets 15/24.. no guzzler tax. i think BMW should be able to meet or beat those numbers with a twin turbo 3.0.
moral of the story is: highly unlikely there will be a guzzler tax on the M3/M4 
Appreciate
0

11222013, 12:57 PM  #28 
General
21114
Rep 20,741
Posts
Drives: 2021 911 turbo
Join Date: Jan 2012
Location: Montreal

I am curious on the mathematical formula you used to calculate 060mph from a 0100km/h number

Appreciate
0

11222013, 01:08 PM  #29  
CommanderInChief
2092
Rep 8,905
Posts
Drives: 2023 M2 Coupe, 2020 GLE 450
Join Date: Nov 2005
Location: Lake Oswego, OR

GGT
Quote:
__________________
Greg Lake Oswego, Oregon, USA 2023 M2 Coupe  Brooklyn Grey/Cognac/CF, 6MT; 2020 MB GLE 450 

Appreciate
0

11222013, 01:49 PM  #30  
Brigadier General
1252
Rep 3,688
Posts
Drives: 2021 Supra 3.0 (Past: 2015 M23
Join Date: Aug 2012
Location: San Francisco, CA

Quote:
__________________


Appreciate
0

11222013, 02:01 PM  #31 
Lieutenant
166
Rep 444
Posts 
4 seconds flat is what a Corvette Stingray runs 060. No chance, no way that a M3 is going to be as fast as that car. I don't give a hoot what some car magazine got with a previous generation M3.

Appreciate
0

11222013, 04:18 PM  #32  
Major General
1712
Rep 5,109
Posts 
Quote:
The Stingray has 460hp and weighs 1565kg The M3/M4 has 430hp and weighs under 1500kg (in base version) The Stingray has more torque though (630Nm vs 560Nm). 

Appreciate
0

11222013, 04:32 PM  #33  
Captain
48
Rep 611
Posts 
Quote:
Let me get this straight: You're having difficulty understanding how a 3450 lb RWD car with 460 hp and 285 section rear tires could be matched by a 3300 lb RWD car with 430 hp and 275 section rear tires? The new corvette has a slight power advantage, but from 060 the M4's weight (depending on whether they deliver on the still reported "sub3307 lb" figure) makes up for this to an extent (although over 1/4 mile, it will not). More importantly, these cars each put enough torque to the ground to be traction limited heremaking that 30 hp bump even less relevant from a dig. I don't believe the new M4 will be faster from 060 than the new corvette (although when comparing the M4 DCT to rhe corvette's MT, it may be interesting), but it certainly isn't "unbelievable" to think the numbers will be close. In fact, based on the specs we know, it would be fairly unbelievable if the new M4 ISN'T close to the corvette in 060 accelerationand remember, the new 'vette is posting better than 4.0 seconds with some reviewers. 

Appreciate
0

11222013, 04:44 PM  #34 
Lieutenant
23
Rep 550
Posts 
The 328 that I owned w/ xdrive was a tank and I barely got 26
__________________
On the list for an M4!!

Appreciate
0

11222013, 04:56 PM  #35 
Major General
5457
Rep 7,037
Posts 
I bet the M4's M differential, DCT and Launch control working together will easily make up for the power to weight deficiency to the Vette making it a close race.

Appreciate
0

11222013, 05:21 PM  #36  
Major General
590
Rep 5,396
Posts 
Quote:
Typically turbo motors are quicker than their specs suggest. I'm very anxiously awaiting the full unveiling of the car. Too much hearsay and rumors around. I want to see the real deal 

Appreciate
0

11222013, 06:09 PM  #37  
Lieutenant
166
Rep 444
Posts 
Quote:


Appreciate
0

11222013, 06:27 PM  #38  
Lieutenant
166
Rep 444
Posts 
Quote:
If you have ever seen a C7 up close you will realize it is a much smaller car than a BMW 3 series car. It's not Lotussmall but almost. 

Appreciate
0

11222013, 06:33 PM  #39  
Major General
5457
Rep 7,037
Posts 
Quote:
Last edited by solstice; 11222013 at 06:38 PM.. 

Appreciate
0

11222013, 06:35 PM  #40 
Convicted Felon
733
Rep 2,180
Posts 

Appreciate
0

11222013, 06:40 PM  #41 
Major General
590
Rep 5,396
Posts 

Appreciate
0

11222013, 07:14 PM  #42  
Brigadier General
126
Rep 4,145
Posts 
Quote:
Launch control should make the times better. However, some drivers are good enough to be able to best this, but likely not routinely. A DCT transmission also gets to 60 faster just because it can shift faster than most humans. LC + faster shifting  weight penalty = faster 0  60. Cheers.
__________________
2017 F80 YMB.


Appreciate
0

11222013, 07:15 PM  #43  
Colonel
2191
Rep 2,557
Posts 
Quote:


Appreciate
0

11222013, 07:23 PM  #44 
Brigadier General
126
Rep 4,145
Posts 
Engine torque means nothing for performance. The number that completely trumps peak engine torque is hp to weight ratio. If you want to bring torque into the equation it has to be wheel torque where you take into consideration gearing.
Also note that the single engine torque figure is the peak torque number only at the engine speed (rpm) that gives this figure. At all other rpms the torque is lower depending on the torque curve. For performance you want the engine torque to keep this peak for as wide a range as possible, that is the torque times the range of rpm that it works over, or as they put it, the area under the torque curve. All torque curves are different for different engines and you would need calculus or a computer to figure out the real engine potential. And this can be done if you get the torque figures for the whole rpm range. However, as it turns out, the maximum horsepower IS the area under the torque curve. And this is why horsepower is the more meaningful number. So, let me repeat this: a single, maximum torque number for an engine in a specific car alone is meaningless as an indication of performance. Horsepower has more meaning in this context and horsepower per weight happens to be one of the best single number indicators of acceleration and speed. Cheers.
__________________
2017 F80 YMB.

Appreciate
0

Bookmarks 
Thread Tools  Search this Thread 

