What makes a car electric?
A bakery car park on a cold January morning. Three cars stand side by side, each with the word electric or hybrid on the tailgate.
One has a fuel flap. One has a fuel flap and a charging flap. One has only a charging flap: the car this path follows.
The questionAll three use an electric motor. What really separates them?
Guess firstOf all new cars registered in the EU in 2025, what share had a charging socket?RevealHide
About one in four: 17.3% battery electric and 9.4% plug-in hybrid. Hybrids without a socket made up another 33.1%.
| Tank | Engine | Battery | Motor | Socket | |
|---|---|---|---|---|---|
| Mild hybrida 48-volt helper; it assists the engine rather than driving alone | fuel | small | helper | ||
| Full hybridshort distances on electricity; charges itself | fuel | small | |||
| Plug-in hybridelectric for everyday distances, then the engine | fuel | 20 kWh | |||
| Battery electricelectricity only | 70 kWh | ||||
| Fuel cellmakes electricity from hydrogen on board | hydrogen | small |
Battery sizes are EU averages of new cars in 2025: just over 20 kWh for plug-in hybrids, close to 70 kWh for battery electric cars.
One word, several technologies
Electric on a tailgate can mean very different things. The difference is not the motor, it is where the energy comes from.
- Hybrids take all their energy from fuel. The battery is a small buffer, filled by the engine and by braking.
- also fill their battery from the grid. Everyday distances can run on electricity, longer trips on fuel.
- take all their energy from the grid. They have no engine and no fuel tank.
- Fuel cell cars carry hydrogen and turn it into electricity on board.
This path follows a battery electric car: the type that depends on charging most.
1,888,016 battery electric cars of 10,937,447 new registrations. Plug-in and other hybrids combine Eurostat's petrol and diesel categories; petrol and diesel exclude hybrids; other is the remainder, including natural gas, LPG and fuel cell cars.
Why the socket matters
A car with a socket needs a place to charge. That single difference connects the vehicle to everything else on this platform: chargers, software, the grid and the price of a kilowatt-hour.
In 2025, battery electric cars reached 17.3% of new registrations in the EU, up from 13.5% the year before. How one public charging session works is the subject of EV charging fundamentals.
Check your understanding
3 questions. Answer all of them to complete this stop. Each answer explains itself.
What separates a plug-in hybrid from a full hybrid?
Full hybrids also drive electrically and recharge while driving. The socket, and the battery behind it, is what lets a plug-in hybrid use energy from the grid.
Where does a battery electric car get all of its energy?
Braking only returns part of the energy that was spent before. Every kilowatt-hour originally comes from the grid.
Hybrids without a plug made up about a third of new EU cars in 2025. Why do none of them need a charger?
A hybrid without a plug fills its small battery from the engine and from braking; all of its energy comes from fuel.
- Battery electric car A car that takes all of its energy from the grid, with no engine and no fuel tank. Glossary
- Plug-in hybrid A hybrid with a socket and a larger battery, so everyday distances can run on grid electricity and longer trips on fuel. Glossary
- IEA: Global EV Outlook 2026: Electric vehicle batteries. https://www.iea.org/reports/global-ev-outlook-2026/electric-vehicle-batteries. Checked 09 Oct 2026. Licence: CC BY 4.0.
- Eurostat: New passenger cars by type of motor energy (road_eqr_carpda), EU27, 2024 and 2025, updated 6 October 2026. https://ec.europa.eu/eurostat/databrowser/view/road_eqr_carpda/default/table. Checked 09 Oct 2026. Reused under the Eurostat copyright notice; shares and ratios calculated by emobility.education, Eurostat is not responsible for them.
- Eurostat: New passenger cars by type of motor energy (road_eqr_carpda), EU27, 2024 and 2025, updated 6 October 2026. https://ec.europa.eu/eurostat/databrowser/view/road_eqr_carpda/default/table. Checked 09 Oct 2026. Reused under the Eurostat copyright notice; shares and ratios calculated by emobility.education, Eurostat is not responsible for them.