In-depth reviews

Audi TT review - MPG, CO2 and running costs

The TT is efficient to run, and holds its value well, while familiar petrol engines deliver a strong mix of performance and economy

Overall Auto Express Rating

4.0 out of 5

MPG, CO2 and Running Costs Rating

4.0 out of 5

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The least powerful 2.0-litre petrol, the 40 TFSI, comes with a seven-speed S tronic gearbox, claiming 42.2mpg economy and CO2 emissions of 153g/km, while the 45 TFSI – in quattro all-wheel-drive S tronic guise – delivers 35.3mpg and 181g/km. Opting for the Roadster model sees a slight fall in efficiency, with the 40 TFSI managing a best of 40.9mpg, and 157g/km of CO2.

Moving up to the performance-focused TT S version still sees average fuel economy of 34mpg, although emissions rise to 189g/km. The 394bhp TT RS pays the penalty for running its 2.5-litre, five-cylinder petrol engine, with an economy figure (on the combined cycle) of 31.7mpg - which is perhaps rather optimistic if you intend to exploit the full power of the RS on a regular basis. CO2 emissions start at 202g/km.

Insurance Groups

Predictably, the 40 TFSI models are the cheapest versions of the Audi TT to insure; they fall into group 35. The 45 TFSI is in group 37 in both manual and S tronic guises and group 39 for the quattro model.

Depreciation

Despite being on sale since 2014, the third-generation TT is still a relatively strong performer on the used market. Our expert data suggests that, after a typical three-year/36,000-mile ownership period, it should hold onto around 53 per cent of its original list price. The new BMW 2 Series offers similar residuals, while the Porsche Cayman betters both its rivals by retaining between 60 to 68 per cent of its showroom price after three years of motoring.

Which Is Best

Cheapest

  • Name
    45 TFSI Sport 2dr
  • Gearbox type
    Manual
  • Price
    £33,470

Most Economical

  • Name
    40 TFSI Sport 2dr S Tronic
  • Gearbox type
    Semi-auto
  • Price
    £34,115

Fastest

  • Name
    50 TFSI Quattro TTS 2dr S Tronic
  • Gearbox type
    Semi-auto
  • Price
    £45,190
Executive editor

Paul was employed across automotive agency and manufacturer-side sectors before joining Auto Express in 2020 as our online reviews editor. After a brief sojourn at a national UK newspaper, Paul returned as executive editor where he now works closely with our commercial partners.

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