ABT Sportsline is introducing new power upgrades for the latest generation Audi A6 Avant under the AS6 badging.
Abt’s CEO Hans-Jurgen Abt said that "The car is characteristically versatile, stylish and dynamic – and we
have tied performance packages which are perfectly suitable to it."
These two new power levels apply to the 3.0-litre TFSI version which now produces 420 HP (309 kW) and 540 Nm of torque instead of 300 HP (221 kW) and 440 Nm, and the new 3.0-litre bi-turbo diesel which has been boosted from 313 HP (230 kW) and 650 Nm to 360 HP (265 kW) and 700 Nm of peak torque.
The ABT AS6 Audi A6 Avant enhancement program also includes new suspension springs or an optional electronic lowering module, while on the outside, the vehicle is distinguished through its custom side skirts, new front spoiler, redesigned rear apron and the ‘powerful double end pipes’.
For the AS6 the German tuner also recommend their CR and DR model rims available in 19 up to 21 inches in size which come wrapped in high speed tyres. 

Source: ABT Sportsline