Real-World Range

The gap between spec and reality

Every EV has two range figures: the one on the brochure and the one you get. The brochure number comes from a controlled lab test (WLTP in Australia). The real-world number is what actually shows up on your dashboard after a week of normal driving.

For most vehicles, the gap is 10–20% in mild conditions. On a cold day doing mostly freeway kilometres, it can reach 30%. In warm weather with urban stop-start driving and regenerative braking doing its job, some drivers actually beat the WLTP figure.

What drives the difference

Highway speed is the biggest factor. Aerodynamic drag scales with velocity squared, so driving at 110 km/h uses roughly twice the energy per kilometre that the same car uses crawling through a suburb at 40 km/h. The WLTP cycle’s “extra-high” phase tops out at 131 km/h but averages lower than a straight highway cruise.

Climate control. Air conditioning in an Australian summer or heating in a Canberra winter both pull from the traction battery. A resistive heater in a cold EV can draw 3–5 kW continuously - that’s a significant chunk of a 60 kWh battery on a multi-hour drive.

Tyre pressure and load. Under-inflated tyres increase rolling resistance. A car loaded with camping gear weighs more and uses more energy climbing hills.

Battery temperature. Lithium-ion cells are most efficient around 20–30°C. A car sitting overnight in winter will have reduced usable capacity until the pack warms up through driving or preconditioning.

How to find real numbers

Crowdsourced data is the most useful tool here. ABRP (A Better Route Planner) aggregates real driving data from thousands of users and publishes average consumption figures broken down by speed. EV-database.org publishes a standardised “real range” test at 100 km/h with climate control running.

For Australian-specific context, the r/AustralianEV community on Reddit regularly posts actual trip data from interstate drives, which gives a realistic picture of what specific models do on the Hume Highway or the Pacific Motorway at 110 km/h.

A practical approach

Rather than chasing a single number, it helps to think about range in scenarios:

• Daily commute (urban, mild weather): expect to match or slightly beat WLTP
• Mixed urban/highway (Aus average conditions): budget for 85–90% of WLTP
• Interstate highway run (100–110 km/h, summer): budget for 75–80% of WLTP
• Winter, interstate, fully loaded: budget for 65–70% of WLTP

For trip planning, the conservative highway figure is what actually matters for deciding where to charge. A car with 600 km WLTP range is a 430–450 km car between charges on a long summer road trip - still more than enough between most major Australian towns, but worth planning around rather than ignoring.