Actually no. Quattro is the best, with xDrive right behind it.
Originally Posted by vptrails
Notice how no competitor to Acura even mentions SH-AWD or does a comparison with it. There's a reason for that.
Having said that, most all wheel drive systems are more than suffient in every day driving. Aparently Lexus has a long way to go with its AWD system based on all the videos I have seen.
The issue with Acura SHAWD is that I'm worried about the longevity of the AWD system. The rear wheels are overdriven (geared for a higher rotation speed than the front) and the system uses partially engaged rear clutches to normalize the rotation speed. They do that so while turning, the outer wheel can fully engage for the effect of actively increasing yaw. So, I'd be worried about that personally, and I'd make sure that rear differential had its fluid properly maintained by POs.
2011 X5 xDrive 35d Red/Black: ZCW, ZPP, ZRC, ZTP, 300, 386, 496, 4AB, 6FL, Combox, LED Coronas. 04/11 Production