Quote:
Originally Posted by CanAutM3
Speaking about throwing numbers, according to SA/AMS to M2C was 9 seconds faster around the 'ring than the M2 they tested for a 60kg (132lb) weight gain which translates to a 6.7% improvement in power-to-weight. Most of that weight gain is from the engine, wheels, brakes and added bracing.
The weight gain of the G8XC over the F8XC will be more in the 300~350lb range for the RWD, which is quite substantial, especially considering that most of that weight is on the front axle. This translates to a ~5.7% power-to-weight advantage over a F8XC and only ~1% over a F82 M4cs. This will be even worse for the AWD version which will be 400~500lb heavier than the F8X. Further, the extra weight does not come from what they've added over the F8X, the added weight comes from what they have not removed. |
How do you know that most of the added weight is on the front axle ?
I've read that the G80 is 125mm longer and also a bit wider than it's predecessor, with majority of extra length between the wheel base.
But even these added dimensions would not add up to 350lbs gain.
What else has become so heavy ? no carbon propshaft anymore maybe ? Bulletproof glass or armored plating ?
You can talk all the numbers you want but in the end -for a track oriented car- more weight will require wider tires, bigger brakes, resulting in more weight again... and once you step over the line of adhesion, it takes much more energy to dissipate before you gain grip again. You need a lot of extra grip to compensate for 200kg at 1.5G taking a corner.