TMQ
04-13-2008, 10:04 AM
Overall very positive, especially the part of DPC.
http://www.caranddriver.com/reviews/hot_lists/car_shopping/crossovers/2008_bmw_x6_xdrive35i_and_xdrive50i_first_drive_re view
"Enabling this impressive handling acumen is a host of technology. The newest piece is BMW***8217;s dynamic performance control (DPC), which is standard on all X6s. The system is a torque-vectoring active rear differential that adjusts how much torque is sent to each wheel. It***8217;s made up of a traditional differential and two electronically controlled planetary gearsets. In the case of the X6, DPC is used first to alter the dynamics while the stability control only steps in as a last resort; this is a fundamentally new way of thinking. For example, DPC will send more power to the outside wheel while cornering to improve its turn-in behavior and reduce understeer. DPC weighs an additional 26 pounds, and we found it to be worth every ounce.
Unlike some competing systems, such as Acura***8217;s SH-AWD, DPC also works when not on the gas***8212;and even under braking. In fact, trail-braking the X6 actually proved useful. On a wet autocross course, the X6 was happy to hang out its tail when provoked, while the stability control let DPC handle most of the necessary adjustments.
Perhaps the most encouraging thing about DPC, however, is that BMW will likely use this technology to improve the handling of its cars, too. DPC doesn***8217;t need all-wheel drive to do its thing, and we***8217;re already drooling at the possibility of a DPC-equipped M3."
There's some turbo lag on the V8:
"Another small complaint with the V-8 version is that when taking off from a stop there***8217;s a noticeable lag in power after hitting the throttle. As you wonder whether or not you***8217;ll merge safely in front of that approaching car, the turbo boost hits, and you get much more thrust than expected. The twin-turbo six doesn***8217;t exhibit this ***8220;nothing, nothing, too much***8221; behavior."
http://www.caranddriver.com/reviews/hot_lists/car_shopping/crossovers/2008_bmw_x6_xdrive35i_and_xdrive50i_first_drive_re view
"Enabling this impressive handling acumen is a host of technology. The newest piece is BMW***8217;s dynamic performance control (DPC), which is standard on all X6s. The system is a torque-vectoring active rear differential that adjusts how much torque is sent to each wheel. It***8217;s made up of a traditional differential and two electronically controlled planetary gearsets. In the case of the X6, DPC is used first to alter the dynamics while the stability control only steps in as a last resort; this is a fundamentally new way of thinking. For example, DPC will send more power to the outside wheel while cornering to improve its turn-in behavior and reduce understeer. DPC weighs an additional 26 pounds, and we found it to be worth every ounce.
Unlike some competing systems, such as Acura***8217;s SH-AWD, DPC also works when not on the gas***8212;and even under braking. In fact, trail-braking the X6 actually proved useful. On a wet autocross course, the X6 was happy to hang out its tail when provoked, while the stability control let DPC handle most of the necessary adjustments.
Perhaps the most encouraging thing about DPC, however, is that BMW will likely use this technology to improve the handling of its cars, too. DPC doesn***8217;t need all-wheel drive to do its thing, and we***8217;re already drooling at the possibility of a DPC-equipped M3."
There's some turbo lag on the V8:
"Another small complaint with the V-8 version is that when taking off from a stop there***8217;s a noticeable lag in power after hitting the throttle. As you wonder whether or not you***8217;ll merge safely in front of that approaching car, the turbo boost hits, and you get much more thrust than expected. The twin-turbo six doesn***8217;t exhibit this ***8220;nothing, nothing, too much***8221; behavior."
