Frontal aream²
Frontal area is the size of the car's silhouette as seen from the front. It matters because official range is only the controlled test case. Real trips change with speed, temperature, tyres, road conditions, payload and how often you can charge.
How to compare it
Use it with drag coefficient to understand motorway efficiency. Cd alone is only the shape score; frontal area is how much shape meets the air.
- Use official range for same-cycle comparison.
- Estimate your own motorway, winter and city mix.
- Aerodynamics and tyres can matter as much as battery size.
What changes it
Range moves because the car is spending energy against air, rolling resistance, heating or cooling, elevation, rain, load and speed.
- High speed raises aerodynamic losses sharply.
- Cold weather adds cabin heat demand and can reduce battery output.
- Tyres, roof boxes and rain can change efficiency without changing the battery.
Common trap
Two cars can have the same Cd, but the taller and wider one still has more aerodynamic drag.
- Cold weather and high speed can change the result more than expected.
- Roof boxes and wide tyres can quietly consume range.
Frontal area: why real range moves
Range moves with air resistance, temperature, tyres, speed and payload, even when the battery size is unchanged.
Frontal area across EVRadar
Based on 163 published cars
Lowest
0.66 m²
Typical
2.5 m²
Highest
3.08 m²