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      03-28-2016, 11:21 AM   #1
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Corner-by-Corner Comparison of BMW M2 vs M4 on Hockenheimring

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Corner-by-Corner Comparison of BMW M2 vs M4 on Hockenheimring
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Here's a great corner-by-corner analysis of the BMW M2 vs M4 on the Hockenheimring (short track), compiled by DeDe.

These stats come from the fastest lap of each car as driven by Sport Auto. The driver was Uwe Sener. The top values are for the M4 and bottom ones for the M2.

We can see how well the cars compare in terms of corner speed, lateral G forces, and top speed at the end of the straight. The two M coupes show themselves to be fairly evenly matched on the short track.



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      03-30-2016, 02:38 PM   #2
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Interesting that the M4 was faster through almost ever corner, by up to 6km/hr, but only had a .2sec/lap advantage.

And had a lower top speed? After a straight where it carried more speed through the corner? Something doesn't add up...
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      03-30-2016, 02:41 PM   #3
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Quote:
Originally Posted by BGR
Interesting that the M4 was faster through almost ever corner, by up to 6km/hr, but only had a .2sec/lap advantage.
You mean the M2 was up to 6kmh faster?( Eingang Motodrom)



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      03-30-2016, 02:43 PM   #4
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Perhaps it was the weight factor...lighter engine, lighter body, faster speeeeeed.
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      03-30-2016, 02:44 PM   #5
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Quote:
Originally Posted by BGR
Interesting that the M4 was faster through almost ever corner, by up to 6km/hr, but only had a .2sec/lap advantage.

And had a lower top speed? After a straight where it carried more speed through the corner? Something doesn't add up...
Its The M2 that was faster in the corner! Look again!
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      03-30-2016, 02:52 PM   #6
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It's not clear if the values on top are for the M4 or the M2. If they are the M4, it won because of quicker acceleration to higher speeds in the long straights -- it appears the M2 took curves at a faster speed. At the end of one straight the M2 had a higher top speed as well. Weird.
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      03-30-2016, 03:03 PM   #7
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Quote:
Originally Posted by BGR View Post
Interesting that the M4 was faster through almost ever corner, by up to 6km/hr, but only had a .2sec/lap advantage.

And had a lower top speed? After a straight where it carried more speed through the corner? Something doesn't add up...

Quote:
Originally Posted by nonagon View Post
It's not clear if the values on top are for the M4 or the M2. If they are the M4, it won because of quicker acceleration to higher speeds in the long straights -- it appears the M2 took curves at a faster speed. At the end of one straight the M2 had a higher top speed as well. Weird.
Yeah, the comparison is a bit confusing... But the numbers on top are for the M4, bottom ones are the M2.

I have just looked at my Sport Auto 4/2016 issue where the M2 Hockenheim lap was published. All of the statistics on the bottom fields match the M2 numbers for that lap.
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      03-30-2016, 03:09 PM   #8
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Lol, how would the M2 even have a straightline advantage? I think there may be some driver skill going on here.
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      03-30-2016, 03:13 PM   #9
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One would need to take two different drivers that each has done 100 laps on the track with their respective vehicle only and then compare average speed in corners.

If you take a driver that swaps cars over the course of one day, there are a lot of variables and factors at play that tell more about the driver than the car. Muscle memory, perception of grip, familiarity with the suspension and limits... confusing both the brain and muscle and butt dynos.

Nevertheless it makes sense the M2 is faster in corners either way.
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      03-30-2016, 03:13 PM   #10
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The M2 is a wonderful car, and these are primarily the reasons why it is close to the M4.

1) The M4 has problems putting down the power. Having traction control on, the power is cut to much, having the traction control off, or in MDM the car becomes a handful.

2) The M2 weighs less, giving it an advantage in almost every aspect such as, acceleration, braking, cornering, etc. Still, its not enough to over come the M4's power once it is put down. Remember, less is more

This just goes to show that having more power means nothing if you can not utilize it properly. Imagine, a M2 with M4 power, or even if the M2 had about 30 more horsepower to close the gap between the 2, and I can imagine the M2 would be faster on this circuit.
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      03-30-2016, 03:27 PM   #11
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Quote:
Originally Posted by ASAP
Lol, how would the M2 even have a straightline advantage? I think there may be some driver skill going on here.
Easy on track it's all about corner exit speed . You can easily overcome a 50 hp disadvantage by starting out 3 mph faster exiting a corner especially on short straights like at hockenheim . On the long straight the M4 does come out faster as expected . Another magazine got a faster time than the M4 with the M2 there . Apparently the M2 is a better chassis on a tight technical track like Hockenhiem.
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      03-30-2016, 03:29 PM   #12
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Quote:
Originally Posted by kinimod View Post
One would need to take two different drivers that each has done 100 laps on the track with their respective vehicle only and then compare average speed in corners.

If you take a driver that swaps cars over the course of one day, there are a lot of variables and factors at play that tell more about the driver than the car. Muscle memory, perception of grip, familiarity with the suspension and limits... confusing both the brain and muscle and butt dynos.

Nevertheless it makes sense the M2 is faster in corners either way.
The M2 and M4 laps was done on different days, but same driver. So the driver variables you mention could go either way (in favour or disadvantage to either car). One variable would be weather, which can explain some of the differences/similarities. However, they have done three timed sessions with different M3/M4's on Hockenheim. The one used here was the fastest AFAIK.
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      03-30-2016, 03:30 PM   #13
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How long is the Hockenheimring (short track)?
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      03-30-2016, 03:34 PM   #14
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Quote:
Originally Posted by 330i* View Post
How long is the Hockenheimring (short track)?
http://www.racingcircuits.info/europ.../#.Vvw4FU1f2M8

Short Circuit 1
1.639 miles / 2.638 km
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      03-30-2016, 03:53 PM   #15
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Will xDrive make M go faster around track???
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      03-30-2016, 04:04 PM   #16
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Quote:
Originally Posted by stvding View Post
Will xDrive make M go faster around track???
Adding all wheel drive will change the characteristics of the car completely. In short though, it will give more traction to the M4 coming out of the corner, and ability to put down more power to the ground. The initial turn in though, would be interesting. I am sure initial turn in understeer can be dialed out by BMW relying on sophisticated xDrive systems. Don't forget though, this is once again, adding weight.
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      03-30-2016, 04:53 PM   #17
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So interesting. Love seeing these comparisons. 2 awesome vehicles
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      03-30-2016, 05:00 PM   #18
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Quote:
Originally Posted by ASAP
Lol, how would the M2 even have a straightline advantage? I think there may be some driver skill going on here.
faster speed coming out of a corner combined with aero will impact speed at the end of straight
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      03-30-2016, 05:05 PM   #19
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So the M3/M4 needs wider tires and a bit of a front spoiler and rear spoiler.
A good set of Ohlin's, JB4 tune.

I know there are many M2 fans and its a nice car, with an interior that needs to be ripped out. There is nothing different from the 235 aside from stitching.

That said, M3/M4 rocks would take a RUF instead. LOL. M2 only if was for free.

Last edited by Ghostriderf80; 03-30-2016 at 05:09 PM.. Reason: grammar poor
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      03-30-2016, 05:21 PM   #20
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Quote:
Originally Posted by Robin_NL
Quote:
Originally Posted by BGR
Interesting that the M4 was faster through almost ever corner, by up to 6km/hr, but only had a .2sec/lap advantage.
You mean the M2 was up to 6kmh faster?( Eingang Motodrom)



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Makes more sense now!
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      03-30-2016, 05:23 PM   #21
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Good to know
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      03-30-2016, 05:31 PM   #22
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Quote:
Originally Posted by Dexterspeed View Post
So the M3/M4 needs wider tires and a bit of a front spoiler and rear spoiler.
A good set of Ohlin's, JB4 tune.

I know there are many M2 fans and its a nice car, with an interior that needs to be ripped out. There is nothing different from the 235 aside from stitching.

That said, M3/M4 rocks would take a RUF instead. LOL. M2 only if was for free.
Stitching, alcantara, carbon fiber trim, M steering wheel, DCT knob (vs standard auto).

That should all count as interior, no?
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