The GT gains a number of performance upgrades over the standard RS6, but what do they do? James Baggott finds out.

But Audi remains dedicated to the wagon cause, and has produced a very special edition of its go fast RS6 model, the GT Avant. Based mostly on the RS6 Avant Performance, which sees power upped ...

One such tuner is Abt Sportsline. Even though the RS6’s big, 4-litre twin-turbo V8-powered estate was always going to be a niche offering, it was crying out for someone to liberate it from its ...

Audi has called on Abt Sportsline to produce a range-topping RS6 Avant, capable of producing 695bhp. Priced at €138,800 (£122k), the Audi RS6 Avant Performance Nogaro Edition is limited to 150 ...

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For duty in the GT, the 4.0-litre TFSI ... compared with the regular RS6 and 80% at the rear. Note also that the basic spring rate is also increased, although Audi doesn’t say by how much.

Audi has committed to a future where odd-numbered cars are powered by gas engines, while the even numbered cars are all-electric, which explains that bit. Regardless of how you want your future ...

But the RS6 GT is different. It’s an ultra-high-performance version of a very special model and designed for those buyers who’ll spend more time attacking mountain passes than Morrisons.