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BMW 3-Series (E90 E92) Forum
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328xi wagon in the snow
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12-11-2012, 07:41 AM | #23 | |
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12-11-2012, 08:06 AM | #24 | |
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it is odd that is will sit and spin both rear tires.
i suppose an s2000 has near 50/50 weight distribustion. as does an e90(a 328 a little closer). in fact, my car will spin both tires with traction control completely off with one tire on the grass, one on pavement. LSD? maybe. am going to jack up the back end one day and spin the wheels to find out. although a good, brand new all season will be quite adequate in alot of snowy conditions, it comes down to this: tires. Quote:
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12-11-2012, 08:42 AM | #25 |
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everyone and their moms know its staged. there are no rollers in real life. torque sensing diffs need friction to work. (not to mention other tricks that could possibly effect the results)
Last edited by Kolyan2k; 12-11-2012 at 09:45 AM.. |
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12-11-2012, 12:35 PM | #27 | |
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On xdrive, no trouble. Computer senses all wheels spinning w.r.t. the one rear, fuly slides the clutch to the rear and brakes the free wheel to send 100% torque minus losses to the one good wheel. The idea here is that BMW 'cheated' by picking one very specific situation in which xdrive is advantageous and focusing on it. |
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12-11-2012, 01:32 PM | #28 |
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q5 probably only has torsen in the center just like most other Audis
PS. just wanted to add....AWD is AWD, Xdrive in BMW, Haldex in Volvo, Quattro in Audi....all are capable of amazing stuff compared to FWD and RWD cars. All can dig through piles of snow and climb hills. I bought A4 because I was amazed to see how Volvo climbed ice hill in front of me, I later realized that AWD is useless where I live. (unless you are buying it for performance benefits) Last edited by Kolyan2k; 12-11-2012 at 01:59 PM.. |
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12-12-2012, 05:28 AM | #29 |
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I guess it could have been staged for BMW. I don't know what you meant by that statement, but I did see the BMW jump off the rollers quickly. I don't think you would every be on a surface that would be that free of fiction on all wheels at the same time! Do you think it was unfair to the other brands?
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328 xi, e91, snow, touring, wagon |
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