In-depth reviews

Audi A5 Coupe review - MPG, CO2 and running costs

The A5 diesel models deliver strong economy, although top-spec petrol cars offer poor residual values

Overall Auto Express Rating

4.0 out of 5

MPG, CO2 and Running Costs Rating

3.9 out of 5

Price
£41,845 to £59,615
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​The most efficient A5 is the 35 TDI diesel, which returns up to 58.9mpg and emits 125g/km of CO2, while the 40 TDI delivers 50.4mpg and from 147g/km. Audi claims the 40 TFSI petrol will manage 42.8mpg and 150g/km, while the 45 TFSI manages 36.7mpg and 166g/km.

A number of Audi A5s will be run as company cars; but Benefit-in-Kind will be fairly expensive given its CO2 emissions – the 45 TFSI sits in the highest 37 per cent bracket.

Insurance groups

The Audi A5’s insurance ratings start at group 27 (out of 50) for a 30 TDI in entry-level Sport trim, while the most expensive standard model is the S-Line fitted with the 45 TFSI petrol engine – this particular version resides in group 40. Opting for the high-performance RS 5 pushes insurance up to group 44.

By comparison, the BMW 4 Series ranges from group 30 for the 420i to group 40 for the M440i with 369bhp.

Depreciation

Our experts predict that the A5 will hold onto around an average of 46-52 per cent per cent of its value come trade-in time, after three years and 36,000 miles. Petrol-powered Sport and S-Line models find themselves at the higher end of the scale, while the optional Technology Pack helps to boost residual values a bit further.

Which Is Best

Cheapest

  • Name
    40 TFSI Sport 2dr S Tronic
  • Gearbox type
    Semi-auto
  • Price
    £38,075

Most Economical

  • Name
    35 TDI Sport 2dr S Tronic
  • Gearbox type
    Semi-auto
  • Price
    £43,265

Fastest

  • Name
    S5 TDI 341 Quattro 2dr Tiptronic
  • Gearbox type
    Semi-auto
  • Price
    £53,860

Shane is responsible for looking after the day-to-day running of the Auto Express website and social media channels. Prior to joining Auto Express in 2021, he worked as a radio producer and presenter for outlets such as the BBC.

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