About this site and how the numbers are made
WLTP Consumption exists to answer one question honestly: what will this car cost to run?
Where the figures come from
Every consumption, emissions and range figure on the site is an official type-approval value measured in the WLTP test, the same test that puts the numbers on the label in a dealership. We compile these figures from manufacturer publications, industry vehicle databases and vehicle market listings, cross-check them against each other, and refresh the database periodically as new models and variants appear. Each figure is tied to a specific variant (engine, gearbox, body), which is why one model can have many entries. We keep a permanent register of every URL so a car keeps its address across updates.
If you find a value that looks wrong, write to info@wltpconsumption.com with the car and the source you compared it with; we check every report.
What we show for each kind of car
- Petrol, diesel and conventional hybrids: fuel consumption per WLTP phase (city, suburban, country road, motorway) and combined, in l/100 km, plus CO2 in g/km.
- Electric cars: energy consumption in kWh/100 km per phase and combined, plus the electric range.
- Plug-in hybrids: their fuel consumption with the battery empty, which is what you get without plugging in, and their electric consumption. We do not show the official blended figure because it depends on an assumption about how often a driver charges; the compare tool blends the two from your own trips instead. The guide Is a plug-in hybrid worth it? explains why.
How costs are calculated
Running cost for fuel or electricity is consumption divided by 100, times your yearly kilometres, times the price you pay per litre or kilowatt-hour. The site starts from typical defaults for your country and lets you change every one of them. Premium adds a driving profile that weights the phase figures by how you actually drive, a per-trip model for plug-in hybrids, separate home and public charging prices, and an estimate of depreciation over your ownership period.
What the figures are not
The WLTP test is run in a laboratory under mild conditions. Real consumption is typically higher, by roughly a fifth for petrol and diesel cars and by much more for plug-in hybrids that are rarely charged; the guide WLTP vs real-world consumption explains the gap and how to adjust for it. Costs are estimates for orientation, not a quote for a specific car, and they exclude purchase price, tax, insurance and maintenance unless stated.
Independence
The site does not sell cars, does not take money from manufacturers or dealers, and shows no advertising. It is funded by the Premium subscription.