Audi RS6 vs Peugeot 508 SW

SpecAudi RS62023Peugeot 508 SW2024
Price (OTR)£105,850£42,500
Power621 bhp225 bhp
Torque850 Nm360 Nm
0–60 mph3.4 secs7.3 secs
Top Speed155 mph155 mph
MPG (combined)24.6 mpg176 mpg
CO₂260 g/km30 g/km
Boot Space565 litres530 litres
Kerb Weight2070 kg1730 kg
Engine4.0L1.6L
Transmission8-speed Tiptronic8-speed Auto
DrivetrainAWDFWD
Insurance Group5026
Annual Tax£190£165
Euro NCAP5 / 5 stars5 / 5 stars
Seats55
Fuel TypePetrolPetrol Hybrid

Running Costs Calculator

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

Over 3 yearsAudi RS6Peugeot 508 SW
Fuel / energy£7,872£1,100
Road tax (VED)£570£495
Insurance (est.)£7,200£4,248
Depreciation (est.)£42,340£17,000
Total cost£57,982£22,843
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.