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x-drive panned
in todays wall street journal (friday sept 16th) they ran a story on 50k sedans now coming with awd. they ran a roan test of sorts on an ice rink. the bmw 530xi came in last. they also inaccurately described how x-drive functions saying that it it devides power 60/40 between back and front wheels. this is not my understanding. i thought the latest x-drive has all the power in the back unless or until there is a need elsewhere in which case power is delivered to that wheel in .10 seconds. the best awd accrodring to the paper? the mercedes e class with 4 matic. 1) who ever would drive on total ice? 2) does anything really help on a sheet of ice except for studded wnow tires. if they are going to perform such a test at least do it snow which is more realistic. the press sucks (by and large).
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I don't read Car & Driver for the investment advice...
| | Reply » x-drive panned |
The X Drive does NOT have all the power to the real wheels in normal conditions, - see link below:
http://www.germancarfans.com/news.cf...eng/bmw/1.html
X Drive Info from this article:
........The result is a significant, clearly noticeable improvement of driving safety and stability as well as agility and traction, particularly on winding roads. When taking a bend dynamically and at high speed, xDrive delivers op*ti*mum drive power to the respective axle at all times, significantly reducing both under- and oversteer in the process. And when driving straight ahead under normal conditions, xDrive in general splits up drive power between the front and rear axles in a 40:60 ratio, thus maintaining that typical BMW style of rear-wheel drive and power.
| | Reply » x-drive panned |
Quote: The X Drive does NOT have all the power to the real wheels in normal conditions, - see link below:
http://www.germancarfans.com/news.cf...eng/bmw/1.html
X Drive Info from this article:
........The result is a significant, clearly noticeable improvement of driving safety and stability as well as agility and traction, particularly on winding roads. When taking a bend dynamically and at high speed, xDrive delivers op*ti*mum drive power to the respective axle at all times, significantly reducing both under- and oversteer in the process. And when driving straight ahead under normal conditions, xDrive in general splits up drive power between the front and rear axles in a 40:60 ratio, thus maintaining that typical BMW style of rear-wheel drive and power. | i stand corrected. the wall street journal had it right. still, it is hard to believe that bmw's version of all wheel drive was the worst performer in their silly "on ice" road test.
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Which is better in terms of drivability in poor conditons and reliablility/longevity...xdrive or quattro? and yes I know this is a BMW forum...
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Its likely the quattro, for snowy weather conditions. But for overall driving dynamics the bmw is the best. Plus bmw doesnt share parts with troublesome VW. 
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x-drive panned