Quote:
Originally Posted by kach22i
From what I've read only the Jag X-Type outside of Porsche makes a rear drive bias split calling on AWD in poor conditions.
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That's not completely true. Performance focused AWD cars like the Subaru STI, Mitsubishi EVO and the Nissan GT-R usually have adjustable torque split, in their most aggressive modes they are usually slightly rear biased.
VW and Audi use two different AWD drive systems. The Haldex system uses an electronic clutch to sense and limit slip. They also have a Torsen system that uses a mechanical diff, I believe it is 80-20 front-rear bias.