[source: ABT Sportsline] With 530 HP (390 kW) and an impressive 690 Nm torque, the ABT RS4-R leaves almost everyone in its wake. And now this limited edition of 50 vehicles has also escaped the grasp of any further potential buyers, as CEO Hans-Jürgen Abt confirms: “The feedback on the car was simply amazing. Thus, the maximum number of production units was reached very quickly. I am very glad that our car struck the right note with our customers.” The potent stationwagon, whic...