The high-performance version of Audi’s seven-seater SUV – the SQ7 was spotted testing in India. Featuring a 4.0-litre bi-turbo V8 engine which makes it the most powerful diesel SUV in the world, the SQ7 is expected to be launched here by the end of this year. The Audi SQ7 test mule has been photographed on Indian soil for the first …