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In-depth reviews

Audi RS 3 review - MPG, CO2 and Running Costs

Reasonable fuel economy is achievable, if you have willpower and a light right foot...

While other performance cars are ‘downsizing’ engine capacity and numbers of cylinders, Audi has stuck with the characterful 2.5-litre turbocharged five-cylinder engine. This has inevitable consequences for the RS 3's fuel economy and efficiency.

For the performance on offer, however, the RS 3 returns competitive figures, with claimed economy and emissions of 29.7mpg and 195g/km on the WLTP test cycle – and those numbers are identical, whether you go for the hatch or the Saloon. By comparison, the 296bhp four-wheel drive VW Golf R with a DSG gearbox returns 32.8mpg and 164g/km - though it can’t compete with the Audi for outright speed. On paper, the BMW M2 Competition is almost an identical match for the Audi in terms of both emissions and fuel consumption.

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Of course, the figures recorded on an official test cycle and the realities of everyday driving are two very different things. In the worst-case scenario, taking your car to a track day would likely see a return of less than 10mpg, whereas if you take things very easily and you might see this figure creeps into the low 30s. Expect something in-between and you won’t be disappointed – and remember that’s still pretty good for a car with the RS 3’s sizzling performance.

Insurance groups

The RS 3 Sportback is not cheap to insure, but that’s only to be expected. The Audi gets a group 40 rating, which is a couple of groups lower than the Mercedes-AMG A 45. The BMW M240i is group 39, while an M2 is group 42. A Thatcham category 1 alarm and immobiliser is fitted to the RS 3 as standard, but many of the exterior panels are unique, pushing up the price.

Depreciation

In addition to relatively good fuel economy, the RS 3 has the strongest residual value compared to all its main competitors, retaining 54 per cent of its value after three years, compared to 47 per cent for the Mercedes-AMG A 45.

Beware the expensive options list though. Audi reckons the average buyer adds 20 per cent to the already hefty list price of the RS 3 by adding extra kit, but spending more up front exposes you to a much bigger hit at resale time.

The Sport Edition trim holds its value better than the regular RS 3, which means that, despite costing £4,000 more to buy outright, the difference between the two translates to around £50 per month on a PCP finance deal.

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Which Is Best

Cheapest

  • Name
    RS 3 TFSI 400 Quattro 5dr S Tronic
  • Gearbox type
    Semi-auto
  • Price
    £44,290

Most Economical

  • Name
    RS 3 TFSI 400 Quattro 5dr S Tronic
  • Gearbox type
    Semi-auto
  • Price
    £44,290

Fastest

  • Name
    RS 3 TFSI 400 Quattro 5dr S Tronic
  • Gearbox type
    Semi-auto
  • Price
    £44,290
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