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> Supposedly useful for traffic
Actually, it's most useful when you have to stop on a steep hill or upwards incline... it stops you from rolling back between the time you take your foot off the brake and get the engine RPMs up to where it moves.
Much more useful with a manual clutch transmission, so I really see little benefit on an X5, but it's a case of since they can do it cheaply, they do it... whether it is really useful or not. It's one more "feature" they can advertise while they are eliminating the engine dipsticks to pay for it.
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