The Audi RS6 Avant was heralded as the ultimate family estate when it was launched in India. It redefined what a family car can be with its ultimate luxury, the stunning design and above all - the 560PS of power from its humongous biturbo V8 engine! And now Audi has upped the stakes with an even more powerful version! Say hello to the Audi RS6 Avant Performance that offers a stomach churning 605PS from the same engine thanks to a host of updates. Is this the ultimate family car money can buy? Watch our video review to know.