The new base model is the A6 2.0 TFSI, which is front-wheel-drive only and powered by a 2.0 litre turbocharged petrol inline four. The 2.0 TFSI produces 132kW and 320Nm of torque, and can sprint from zero to 100km/h in 8.3 seconds.
A fuel-saving start-stop system, mutlitronic automatic transmission and regenerative braking are standard, and the A6 2.0 TFSI consumes just 6.4 l/100km on the combined cycle.
The A6 2.0 TDI is also front-drive only, and produces 130kW and 380Nm from its 2.0 litre turbodiesel four.
Despite being the most fuel-efficient model in the 2012 A6 range (it sips only 5.0 l/100km), it's also a shade quicker than the 2.0 TFSI, hitting 100km/h from rest in 8.2 seconds.
Both the A6 2.0 TFSI and A6 2.0 TDI are fitted with a multitronic CVT gearbox as standard, which also offers a sports mode and eight fixed ratios.
A hybrid A6 variant will also eventually join the range, however its arrival date has yet to be confirmed. The A6 hybrid combines a 2.0 litre turbocharged engine outputting 155kW and 350Nm of torque with a 33kW/211Nm electric motor and lithium-ion battery pack.
The hybrid sends drive to the front wheels exclusively via an eight-speed automatic and can reach speeds up to 100km/h on electric power alone. It's hardly slow too, hitting triple-digit speeds in just 7.3 seconds.
Pricing for the V6 powered A6 variants remains unchanged for 2012, with the new four-cylinder models significantly undercutting their German rivals from BMW (520d and 528i), and Mercedes-Benz (E250 CGI and E250 CDI).
- Audi A6 2.0 TFSI $77,900
- Audi A6 2.0 TDI $78,900
- Audi A6 2.8 FSI quattro $93,900
- Audi A6 3.0 TDI quattro $116,500
- Audi A6 3.0 TFSI quattro $121,500