Quote:
Originally Posted by stein_325i
RWD-Based...
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The X5 Le Mans (E53S) is AWD, swapping a Torsen Unit for the road car's electronic torque management system.
A second, and less known X5 prototype was built by M at the same time. This one is RWD and features the S62 from the E39 M5 coupled to an SMGII transmission.
Little known fact about the E53S...
The P75 LMR V12 was not the first choice of engine; P80 V10 from the BMW/Williams F1 had that honor. It also ate up gearboxes in a matter of feet.