Skip to main content
CaralogyCaralogy
HomeBrandsRoad TripBudgetDuelGuides
Caralogy

The car comparison platform. Physics simulation, road trips, real costs.

Navigation
All brandsCar duelRunning costsMotorwayMethodology
Simulators
Motorway simulatorRunning costsPerformance duel
Brands
VolkswagenBMWMercedesToyotaTeslaAudi
FRENDEESIT
© 2026 Caralogy · All rights reserved
  1. Home
  2. /Consumption
  3. /Sedans
A6BEVvs718Petrol
  • MotorwayMotorwayRange and charging
  • PerformancePerformance0-100, top speed
  • ConsumptionConsumptionYearly cost
  • Specs

Audi A6 Sportback e-tron vs Porsche 718 Cayman: which is cheaper to run?

What each kilometre costs, depending on your driving profile and how you charge. Annual projection and cumulative savings over 10 years.

grand tourer · 2026 vs 2018 · 15,000 km/an · Mixed · Petrol 95 2.17 €/L · Home 0.20 €/kWh · Methodology
Annual mileage
15,000 km
5,000 km50,000 km
Driving mix

30 % City · 50 % Road · 20 % Motorway

Fuel price
Petrol 95 2.17 €/L · Diesel 2.38 €/Lprix-carburants.gouv.fr — moyenne nationale du 05/10/2026 ; EDF Tarif Bleu Base au 01/08/2026 ; DC autoroute : moyenne des réseaux sans abonnement
Charging type

Result · yearly energy cost

AAudi A6 Sportback e-tron

465 €per year

15,5 kWh/100 km weighted · 3.10 € per 100 km · 2 324 kWh per year

Gap2,770 € per yearin favour of the A6 Sportback e-tron (−86 %)≈ 1,277 L petrol 95
BPorsche 718 Cayman

3,236 €per year

9,9 L/100 km weighted · 21.57 € per 100 km · 1 491 L per year

The verdict changes with your usage
ProfileSplitAA · A6BB · 718Gap
City70 / 25 / 570 % city · 25 % road · 5 % motorway396 €3,486 €3,090 € · A6
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway465 €3,236 €2,770 € · A6
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway550 €3,008 €2,458 € · A6

Cumulative saving for the A6 Sportback e-tron

1 year
2,770 €
3 years
8,311 €
5 years
13,852 €
10 years
27,705 €

Energy only. Excludes purchase, insurance, servicing, depreciation.

What produces these figures

WLTP combined
14.9 L/100 km · 9.8 L/100 km
Powertrain
Fully electric · Combustion
Power
367 ch · 300 ch
Kerb weight
2,175 kg · 1,335 kg

Other similar comparisons

JaguarVSPorsche

F-TYPE P300 vs 718 Cayman

gap 595 €/year
BMWVSPorsche

Z4 M40i vs 718 Cayman

gap 964 €/year
BMWVSPorsche

Z4 M40i vs 718 Cayman

gap 1 033 €/year
PorscheVSBMW

718 Cayman vs Z4 sDrive30i

gap 1 567 €/year

Frequently asked questions

On a 100 km mixed trip, the Audi A6 Sportback e-tron is about 85% cheaper than the Porsche 718 Cayman with default parameters. This ratio shifts with your actual energy prices - simulate for your profile.

The declared range of the Audi A6 Sportback e-tron is 681 km (WLTP/EPA). In real-world conditions, expect 10-20% less.

The Audi A6 Sportback e-tron is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.

A6
· 718