They include a 1.4 TFSI petrol which can offer 4.7 L/100km (60mpg) and a C02 emissions rating of €190 (Band A3).
There's also a 1.6, 110hp diesel planned as a Saloon version which gets through 3.3 L/100km (85.6mpg) and is in Band A2 of €180.
The 1.4 petrol engine is available in combination with either a manual 6-speed transmission or a 7-speed S tronic. The power unit with cylinder on demand technology is also offered in all four body versions of the A3 car line - as a three-door, a five-door Sportback, a Saloon, and as a Cabriolet.
Audi has already launched 12 ultra models with diesel and petrol engines.