The 2015 Audi S4 is an all-wheel-drive sports sedan that is the performance variant of the A4. Its sole powertrain ... and the optional sport rear differential. In a 2013 First Test we said ...

When equipped with the Sport Differential, the all-wheel-drive sedan rotates almost like one of its rear ... The A4 is even better than before with its previous shortcomings addressed by Audi.

Quattro with Ultra technology also is not compatible with Audi’s rear sports differential. 2017 Audi A4 Allroad Quattro: The Only Way We Get an A4 Avant Audi Switches Focus to eTron, Delays ...

Since it’s an Audi and the year is 2023 ... The other is a torque-vectoring “sport rear differential” added to the standard Quattro all-wheel-drive system. Though I haven’t driven an ...

When the system switches to front-wheel-drive mode, the front clutch disconnects the propshaft and the decoupler in the rear diff opens ... in a pre-production Audi A4 Avant test vehicle, and ...

It also can have Audi's sport differential, which is a torque vectoring rear diff that can send nearly 100 percent of the power to one wheel. Otherwise, this has the changes you'd expect that make ...

Audi, the brand that ... power and torque are transferred to the rear wheels via a seven-speed S tronic automatic transmission and a mechanical locking differential. Performance, as you might ...