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Originally Posted by martinbo  The electro-mechanical diffs - are these both on the centre and rear differentials? |
That's what I wanted to know.
The WRC cars till recently had 3 interconected electronically aided
front-center-rear active diferentials.
So, is BMW thinking of something similar ?!
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Sounds a lot like Honda's SH-AWD System that not only distributes power infinitely between the front and rear axles but also laterally to the left and right side of the car.
It's nice technology, but all this electrical intervention just because a car is understeering? Strewth, what ever happened to the good old throttle lift?
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Well, just trottle lift = slow cornering and dangerous, right ?!
And we don't want that, now do we.
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I fear that with xDrive and Dynamic xDrive BMW are removing the driver from the vehicle control interface. At least that's the impression I'm getting...
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Oh and by the way, quattro does have one other inherent advantage over xDrive still: it's more compact by virtue of the fact that system is designed from the outset to be AWD and does not have to deal with the restrictions imposed by the rearward mounting of the engine. Such practice necessitates that the xDrive systems are heavier, more mechanically complex and less balanced.
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Let's just say I want to see it first than draw conclusions.
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BMW make great cars, and the marketing behind them is just as great.
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Agreed.
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I don't expect Mitsu EVO levels of aggressive cornering adjustability in BMWs equipped with such systems though I may be pleasantly proven wrong!
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You too Martin ?!
Whenever I hear this EVO/WR_something I sometimes feel sick.
Nothing beats and F1 car in cornering, nothing.
What you need is:
* state of the art aerodynamics + fancy tyre compounds + super-efficient brakes + seamingless sequential clutch + (very) low weight + great rigidity.
Now that nice brake steering system from McMerc would be nice.
Now this is a proper cornering machine, and will smack any non-sense AWD car out there.
