A Toyota Corolla with a 1.8L engine requires 6.2 liters of gas to drive for 100 kilometers on a highway. But on city roads, it would require 7.9 liters of gas. A 2022 Ford F-150 requires 9.4 and 12.1 liters per 100 km for highway and city driving, respectively.
This is something everybody with an ev already knows. Drag is a big factor at high speeds. But under 40mph (65kph) it’s pretty negligible. If you did a constant 30mph you could probably triple your estimated range.
With an ICE vehicle, you’re wasting a lot of energy at low speeds being inefficient. But with an electric motor, you’re always using exactly as much energy as needed to move.