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.
Gearing actually isn’t that big of an issue because synchronous motors do not have an efficiency dropoff at higher RPM, until they hit a point where the magnetic fields start to slip due to the opposing torque (eg friction and drag and inertia). Aerodynamic drag and elevation are the primary variables for range