ABT RS4

The new Audi RS4 Avant employs the Volkswagen Group’s fresh 2,9-litre turbocharged V6, and the tuners over at ABT Sportline have already gone to work on it.The RS4 has been fitted with the ABT engine control unit, which increases the wagon’s outputs from 331 kW and 600 N.m to 375 kW and 680 N.m. ...