Interesting comparison here of the Audi A1 against the VW Polo GTI. Have a look!
One good reason for Audi fans to stick with the A1 is its economy. At 5.3 litres/100km in the combined cycle, you will have to settle for a considerably less powerful Suzuki Alto or Fiat 500 to do better from a non-hybrid petrol in Australia. The Audi is 13 percent more fuel efficient than the Polo GTI, and even when compared with the most fuel efficient petrol model in the Polo range – the 77TSI Comfortline, at 5.5 litres/100km – the A1 still takes the environmental points.
The A1’s CO2 emissions are also lower than the Polo GTI, placing it in the same league as some of the cleaner diesels on the market, including the Volkswagen Golf, Peugeot 308 and BMW 1 Series. The GTI is by no means an eco destroyer either, emitting the same level of CO2 as the Toyota Camry Hybrid.