Plug-in hybrid · Petrol · registered 2021–2024

Porsche Panamera 4 E-Hybrid real-world fuel use

n = 3,884 cars Avg 37,289 km driven per car EEA data 2024
On the road this car uses
4.3×
the fuel of its official figure
Official
2.1
Real world
9.3
0510 L/100 km
Real world: total fuel ÷ total distance across 3,884 cars (EEA OBFCM data, CC BY 4.0). Official: derived from the average WLTP CO2 of 49.7 g/km.
Real fuel use
9.3 L/100 km
30.4 mpg (UK)
Distance with engine off
22%
all models average 28%
Extra fuel per year
+£1,499
vs official, at 15,000 km and £1.40/L
Real CO2 from fuel
215 g/km
official 50 g/km
Illustrative photo
Illustrative photo, not the Porsche Panamera 4 E-Hybrid.

How much is really driven with the engine off

Engine off (electric)21.7%
Battery, engine off 21.7% Battery assisting, engine running 15.8% Battery empty, hybrid mode 62.5%

When not driving on battery alone, this model uses about 11.9 L/100 km. Its official electric range is 57 km. Charge more often and your figure drops towards the official one — try the calculator.

Against similar plug-in hybrids

The closest models by kerb weight in the same data.

ModelOfficial → realReal L/100 kmEngine offCarsGap
Mercedes-Benz S 450 e6.231%2149.5×
Mercedes-Benz S 580 e 4MATIC7.130%2,1139.5×
Mercedes-Benz S 580 e7.229%1,5099.9×
BMW 745Le xDrive8.518%2793.7×
Porsche Panamera 4 E-Hybrid9.322%3,8844.3×
Audi A89.419%7914.6×
Mercedes-Benz AMG e 539.525%3729.8×
Compare with Mercedes-Benz S 580 eCompare with Mercedes-Benz S 450 eCompare with Audi A8

UK company car tax

Benefit-in-kind tax is based on the official CO2 figure (50 g/km average for this model in the data), not on real-world use. Plug-in hybrids approved to the stricter Euro 6e-bis standard show higher official CO2. Under HMRC's current easement, qualifying cars first registered from 1 January 2025 to 5 April 2028 with official CO2 of 51 g/km or more and at least 1 mile of electric range are treated as 1 g/km for company car tax. Check your own car's emission standard and figures before relying on it.

What the rule change means
General information, not tax advice.

Own one? Send us your real figures

Tell us your average fuel use, how often you charge and your typical trip. Owner reports will appear separately from the official data.

Send my figures

Questions

How much fuel does the Porsche Panamera 4 E-Hybrid really use?

Across 3,884 cars in the EEA 2024 fuel meter data, the Porsche Panamera 4 E-Hybrid used 9.3 L/100 km (30.4 mpg UK). Its official figure, derived from WLTP CO2, is about 2.1 L/100 km.

Why is the real figure 4.3× the official one?

The official test assumes a high share of electric driving. In real use these cars covered 22% of their distance with the engine off, so the engine ran far more than the test assumes.

Where does this data come from?

From the on-board fuel consumption meters fitted to every new car in the EU since 2021. The European Environment Agency publishes the readings each year under a CC BY 4.0 licence.

Can I get closer to the official figure?

Yes, by charging before most trips and keeping daily journeys within the electric range of about 57 km (official). Use the calculator to see your own likely figure.

Method: all Porsche Panamera 4 E-Hybrid plug-in hybrids in the EEA 2024 OBFCM dataset with at least 1,000 km recorded (name variants grouped: Panamera 4 E-Hybrid, Panamera 4, Panamera 4E-Hybrid). Full methodology. Data: European Environment Agency, CC BY 4.0.