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View all Audi A5 reviews
Parkers overall rating: 4.6 out of 5 4.6
  • Efficient suite of non-hybrid engines
  • Driving aids reduce consumption and stress
  • Strong residuals and low-cost leases

Fuel economy is good across the board with only the most powerful petrol engines dipping below 40mpg. Claimed figures do vary with wheel size, however. You can aim for 51.4mpg with the 2.0-litre TFSI 190hp, while the 252hp version claims 45.6mpg - following on is the S5 with 36.7mpg. Most impressive petrol version on paper is the 1.4 TFSI with a claimed 53.3mpg At the top end of the range is the RS 5, which offers a claimed 32.5mpg. In the real-world, you'll be hard-pressed to see much above 25mpg.

The least powerful diesel is the most efficient, with up to 70.6mpg claimed for the 190hp 2.0-litre TDI Ultra Sport S Tronic on standard 17-inch alloy wheels, while the 218hp V6 3.0-litre TDI comes in at a respectable 61.4mpg. An impressive balance of power an economy comes with the 286hp version of the V6 which official tests claim returns 51.4mpg. Again, figures experienced out of lab conditions are more likely to be in the mid-40s mpg-wise.

Company car drivers will want to look at the 2.0-litre TDI Ultra 190hp which produces just 105g/km of CO2, but even the entry-level V6 3.0-litre TDI is reasonable with 119g/km. Go for the 286hp Quattro and you’ll enjoy a 5.2 second 0-62mph time with just 143g/km of CO2 emitted.

The 2.0-litre TFSI petrol engine comes in at 117g/km and 136g/km of CO2 for the 190hp and 252hp versions respectively, compared with the 3.0-litre S5’s 166g/km. Impressively, the RS 5 comes in at 197g/km, which may make it less than appealing for some tax scenarios but shows the progress made over the previous generation model.

On the lower-power models wheel choice can make a small difference to emissions, so check your chosen specification is in the right band or meets your own expectations of environmental friendliness.


  • Fit and finish is excellent
  • Longevity of technology still an unknown
  • Most engines proven to be reliable

This is an important car for Audi, so you can be sure it’s been designed and built to the highest order. It also shares a lot of kit with other vehicles in the Volkswagen Group, from drivetrains to interior components, so you can buy with confidence. As with the A4, our only concern would be surrounding the Virtual Cockpit system and some of the electrics, which proved problematic in some early Audi TT models.

The Audi RS 5 uses a mixture of Porsche and Audi running gear. There’s no reason to believe it will be less reliable than other models of A5, but it may be less tolerant of neglect. As a high performance model, expect it to be more expensive for consumables such as brake pads, discs and tyres.

Estimated fuel cost per year

Fuel type Pence per litre Estimated cost per year *
Unleaded 128p £1,058 - £1,818 *
Diesel 131p £851 - £1,168 *

* The estimated fuel cost figure is based on an annual mileage of 10,000 miles and is a guide to how much this model will cost in fuel each year. It's calculated using the model's average MPG (calculated from both town centre and motorway driving) and the average fuel price from around the country. Actual fuel costs will vary based on driving style and road conditions.

Highest and lowest CO2 emissions

Engine CO2 emissions Road tax (12 months)
2.0 TDi (190ps) Diesel 105 g/km (Min) £20 - £145
2.9 TFSi (450ps) Petrol 206 g/km (Max) £465

Ongoing running costs

Road tax (12 months) £20 - £465
See tax rates for all versions
Insurance group 25 - 47
How much is it to insure?

Vehicle excise duty (VED) varies according to the CO2 emissions and the fuel type of the vehicle. For cars registered before 01 March 2001 it is based on engine size. For cars registered on or after 01 March 2001 the VED or road tax is based on the car's CO2 emissions.