New Audi RS3: how does the rear differential work in drift mode?

Third of its kind, the new Audi RS3 adopts a brand new rear differential which has, among other things, a drift mode. We explain how it works with, in pictures, a very explicit short video.

Installed for the first time on an Audi, this “RS torque splitter” replaces the old rear axle differential with two multi-plate clutches, one per wheel. Each allows for fully variable torque distribution, wheel by wheel. In dynamic driving, the torque distributor increases the latter towards the wheel outside the turn in order to reduce understeer. In a left turn, it transmits engine torque to the right rear wheel and vice versa. Designed specifically for circuit driving, the new "RS Performance" mode ensures the most neutral behavior possible, limiting oversteer and understeer as much as possible.

As for the new "RS Torque Rear mode", designed for use on "closed roads" (!), it allows the drift function. In this case, the distributor is then capable of transmitting up to 100% of the torque to just one of the rear wheels, thereby authorizing a drift, a bit like with pure propulsion.

Nouvelle Audi RS3 : comment fonctionne le différentiel arrière en mode drift ?

Still, this maneuver is all the more delicate as the Quattro transmission retains the firm will to regain traction, which is greatly favored by the excellent grip of the 19” tires (265/30 at the front and 245/ 35 rear)! Be aware that to take full advantage of this new feature you will need to plan for a substantial tire budget, the life expectancy of the tire outside the bend during our drift session was… 6 minutes!

To read/see also on auto-moto.com:

Test new Audi RS3

Drift mode: the technology

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