MPG and running costs
Taken at face value, the Audi TT RS is surprisingly efficient for a car that can hit 62mph in under four seconds. Claimed economy figures are 34.4mpg and 187g/km, not brilliant for an engine of this size, but impressive considering the performance that is accessible. Audi will only be bringing a limited number of TT RSs into the UK in 2017 so residuals should be strong, although don't expect to be able to hang onto as much value as if it were some limited-build Porsche or BMW.
There’s one big drawback however, in reality you cannot drive the TT RS in a manner to produce such large MPG figures. The noise the engine makes and with such easily accessible rapid acceleration, you can’t help but prod that throttle pedal to enjoy both attributes. On anything other than a long motorway run, if you can achieve an MPG figure north of 20 you have better self-restraint than we do.
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By comparison, the Porsche 718 Cayman S will officially hit up to 38.7mpg on the combined cycle, but considering the Porsche's weight advantage and smaller, less powerful four-cylinder engine, the gap is not quite as big as you would think. The bigger, heavier, BMW M2 averages 33.2mpg combined, although thanks to the BMW's lower purchase price and rock solid residuals, it should be an easier proposition to try to justify.
Being an Audi and not something with a more exotic badge, servicing and other running costs should be reasonable compared to the Porsche 718, but the highly-tuned and bespoke nature of the powerplant will make it a more expensive proposition against more humble TT variants.
