Audi has announced a pair of new common-rail diesel engines that will join the A3 and A3 Sportback lineups. The most powerful variant of the 1.6-liter TDi produces 105HP and 230 Nm (170 lb-ft) of torque, and is combined with Audi's new start and stop, and energy recovery systems. With this engine the A3 sprints from 0 to 100km/h (62mph) in 11.4 seconds and reached a top speed of 194 km/h (121mph) while consuming on average 4.1 liters of diesel per 100km (57.37 US mpg). This equates to 109 grams of CO2 per kilometer. 
There's also a 90HP version of the 1.6-liter TDi that propels the A3 to 100 km/h (62 mph) in 12.9 seconds and on to a top speed of 180km/h (112 mph). This model, which does not feature the start/stop system or energy recovery, has a higher average consumption of 4.5 l/100 km (52.27 US mpg) with CO2 emissions of 118 grams per kilometer .
The A3 1.6 TDI is available for order in Europe with the basic price for the 90HP version set at �22,550 and for the 105HP model at �23,550. Those who opt for the 5-door Sportback model will be charged an extra �900.
