The S6 is the highest specification model in the 2021 A6 range excepting the occasional RS6 model that comes along, but that isnt a permanent fixture. The new Audi S6 2021 model has replaced the petrol engine from the previous generation with an uprated 3.0 litre bi-turbo diesel engine with 349 horsepower giving the same seamless acceleration asd before but a significant improvement in CO2 and fuel economy, and as the S6 is primarily used as a mile munching high performance luxury model then this change has gone down well with buyers. Our best prices on a new Audi S6 for Sale are displayed above with our cheapest prices and the best deals we can find. The 2021; car is available in both saloon and avant formats, with the S6 Avant being around £2,500 more than the equivalent saloon, but that only translates to a few pounds more on the monthly leasing price, and specification levels are identical between the two. Just click on the A6 you’re interested in, and use our simple online calculator to change the parameters of mileage, term and up-front payment to work out your perfect deal, and see the cheapest monthly payments we can find you in the UK from our comprehensive panel of leasing companies, with road tax and delivery anywhere mainland UK included.