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X9BEVvsCaymanPetrol
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  • SpecsX9 · Cayman

Xpeng X9 vs Porsche Cayman PDK: 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.

MPV · 2024 vs 2010 · 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

AXpeng X9

687 €per year

22,9 kWh/100 km weighted · 4.58 € per 100 km · 3 432 kWh per year

Gap3,473 € per yearin favour of the X9 (−83 %)≈ 1,601 L petrol 95
BPorsche Cayman PDK

4,160 €per year

12,8 L/100 km weighted · 27.73 € per 100 km · 1 917 L per year

The verdict changes with your usage
ProfileSplitAA · X9BB · CaymanGap
City70 / 25 / 570 % city · 25 % road · 5 % motorway584 €5,521 €4,936 € · X9
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway687 €4,160 €3,473 € · X9
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway812 €3,369 €2,556 € · X9

Cumulative saving for the X9

1 year
3,473 €
3 years
10,420 €
5 years
17,366 €
10 years
34,733 €

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

What produces these figures

WLTP combined
22.0 kWh/100 km · 10.1 L/100 km
Powertrain
Fully electric · Combustion
Power
543 ch · 269 ch
Kerb weight
2,630 kg · 1,360 kg

Other similar comparisons

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X9 vs V 300 d 4MATIC

gap 3 030 €/year
PorscheVSBMW

Cayman PDK vs Z4 sDrive30i

gap 2 799 €/year
XpengVSMercedes

X9 vs V 300 d 4MATIC (long)

gap 3 405 €/year
PorscheVSBMW

Cayman PDK vs Z4 sDrive30i

gap 2 834 €/year

Frequently asked questions

On a 100 km mixed trip, the Xpeng X9 is about 85% cheaper than the Porsche Cayman PDK with default parameters. This ratio shifts with your actual energy prices - simulate for your profile.

The declared range of the Xpeng X9 is 460 km (WLTP/EPA). In real-world conditions, expect 10-20% less.

The Xpeng X9 is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.