Other things being equal ( and that’s the important bit), no. I’ve done deliberate test routes in the past using different settings (level 0 v level 3 etc., ECO, NORMAL, SPORT) and got close results but you need really long runs on the same roads in similar conditions to eliminate or at least minimise all the variables. We recently had just such an opportunity in the e-Niro. 221 miles round trip, me driving out (NORMAL mode, level 0 + AUTO), wife return (ditto but she prefers level 1). Mix of roads, 40-60mph, 5 overtakes (me 2, wife 3), plus 30 miles duals/motorway at 70-ish, air-con working. Set out with 100% and got back with 97 miles on the GOM (4.9 miles/kWh). Repeated the journey yesterday in similar weather but entirely in SPORT mode, same regen. 220 miles and 103 miles still to go on return home (5 miles/kWh --only 3 overtakes this time?). If there is a secret, it’s simple: minimise energy input required to achieve desired progress -- a steady speed around 50mph is the ideal compromise. There’s no point in pratting about doing without creature comforts or stinting yourself on the available power in ECO mode (let alone ECO+).