Peugeot 508 PSE vs Audi RS4

SpecPeugeot 508 PSE2023Audi RS42022
Price (OTR)£54,500£70,950
Power360 bhp450 bhp
Torque520 Nm600 Nm
0–60 mph5.2 secs3.9 secs
Top Speed155 mph155 mph
MPG (combined)166 mpg28.8 mpg
CO₂30 g/km219 g/km
Boot Space530 litres495 litres
Kerb Weight1870 kg1780 kg
Engine1.6L2.9L
Transmission8-speed Auto8-speed Tiptronic
DrivetrainAWDAWD
Insurance Group4044
Annual Tax£165£190
Euro NCAP5 / 5 stars5 / 5 stars
Seats55
Fuel TypePetrol HybridPetrol

Running Costs Calculator

Adjust the inputs to estimate what each car will cost you to own.

Over 3 yearsPeugeot 508 PSEAudi RS4
Fuel / energy£1,167£6,724
Road tax (VED)£495£570
Insurance (est.)£5,970£6,462
Depreciation (est.)£21,800£28,380
Total cost£29,432£42,136
How these numbers are calculated
  • Fuel cost uses the car's combined MPG and the price you enter.
  • EV energy cost assumes 3.5 mi/kWh (UK average). Real efficiency varies by car and driving style.
  • Insurance is a rough estimate based on the car's insurance group — your actual quote depends on age, location, and history.
  • Depreciation assumes 40% loss over 3 years, scaled linearly. Premium brands and EVs can deviate significantly.
  • Road tax uses the published first-year and standard VED for the car's CO₂ band.