Rank cars by real range and consumption at 110 km/h
Rated fuel and range figures are based on a mixed test cycle with lots of lower-speed driving. On a real highway at 110 km/h, aerodynamic drag dominates, because it rises with the square of speed. That is why a slippery EV sedan can out-range a boxy SUV that has a bigger battery on paper, and why two cars with the same rated economy can be very different on a long interstate run.
We use each car's published drag coefficient, kerb weight and battery or fuel-tank capacity to estimate steady-state consumption at 110 km/h, then rank the cars. Figures are a mild-weather (20°C) estimate. To see how cold or hot weather changes the picture, use our Speed & Weather Range Calculator.
Highway range is modelled from manufacturer drag coefficients, weights and capacities where available; cars without published aero data use body-type estimates. Real-world results vary with wind, gradient, temperature, load and driving style. Estimates are approximate guides only.
Add up to 4 cars to rank them by real highway efficiency