It's not the biggest seller in the UK but is incredibly popular in world markets where diesel isnt desireable, the 55 TFSI is a 3.0 litre 6 cylinder petrol engine with 340 horsepower, good for a 0-60 time of just over 5 seconds and a top speed limited to 155 mph. Fuel economy does drop a bit but the 55 is such a lovely smooth engine it really matches the refined ambience of the A6's executive nature and the petrol does feel a cut above the diesels in use. Our best deals on a new Audi A6 55 TFSI petrol are displayed above with our cheapest monthly leasing prices we can find. The 2021 A6 55 TFSI car is available in both saloon and avant formats, with the Avant being around £2,500 more than the equivalent saloon, and specification levels are identical between the two. Just select the A6 you’re interested in above, and use our easy online calculator to choose your ideal mileage, term and up-front payment to see your own personalised deal immediately and see how much we could save you with the cheapest monthly payments from our comprehensive panel of leasing companies, with road tax and delivery anywhere mainland UK included.