Audi A6
Audi made a high-performance, 4.2-litre V8 engine (parts code prefix: 077, identification code: AEC) with a Bosch KE-Motronic ECU available as an option in the original European S4s, and made the decision to continue to do so with the S6, making a version of the 4.2 available as an optional upgrade over the 2.2-litre inline five-cylinder turbo. Unlike the five-cylinder turbocharged version, the V8-powered S6 was supplied with a four-speed automatic transmission as standard, but kept the quattro four wheel drive. A six-speed manual gearbox was also available as an option.
Audi TT
In 2016, the MQB-based Audi TT RS coupé and roadster were announced with the five-cylinder 2.5 litre TFSI engine now producing and 480 Nm (354 ft-lbs) of torque between 1,700 and 5,850 rpm. Audi's all-wheel drive quattro system is the standard layout and the only transmission option is the 7-speed S tronic automatic transmission.