2012 Audi A6 Caught Testing

Audi has already launched the new A6 in India. However MotorBeam reader Edd Ferns spotted an A6 with test plates in Mumbai. Now it is quite uncertain what Audi is testing as the company has already launched all the variants of the A6 in the country already. Could Audi be testing hybrid technology or a different wheel-base version of the A6? Or is Audi testing a more powerful engine in the A6, probably the 4.2 FSI? We will have to wait and watch as the spied car is completely de-badged and thus there is no give away of what Audi is really upto.