Quote:
Originally Posted by kjx
Dollar for dollar on M4 options, it is definitely, without a doubt the best $4100 that can be spent.
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Well, that depends. If you live in a snow zone and want to daily it then I think it's probably a terrific option.
If you are not going to drive in snow, it's a mixed bag of pros and cons. Extra traction is a pro if drag racing, but how many people do that? On a road course it will help coming off the corner but it adds a few hundred extra pounds which has a real impact on track and on consumables too. And handling will feel different unless you turn off the stability control completely and have just the rear drive; but then you still have extra weight.
Can you use the 10 stage traxtion control in rear drive mode with xDrive?