BMW I3 60AH REX VS 94AH VS 120AH MAXIMUM RANGE TEST COMPARISON

EV Channels Review

This video presents a comprehensive real-world range test comparing three BMW i3 models with different battery capacities: the 60Ah, 94Ah, and 120Ah, all featuring the Range Extender (REX) option except for the 120Ah. The test was conducted in a convoy under mixed driving conditions (city, country, motorway) at ambient temperatures of around 9°C. The 60Ah REX model expired its battery at 75.8 miles, with the REX engine engaging shortly after, allowing it to continue. The 94Ah REX model covered 131 miles before the REX engaged, having used most of its 27kWh usable battery. The 120Ah model, a non-REX version, achieved an impressive 172.7 miles before completely running out of power, though the final few miles saw a sudden loss of power. The reviewer highlights the i3's efficiency and low running costs, especially with cheaper electricity tariffs. While acknowledging the i3 is primarily a city car, it performs adequately on motorways, though comfort and stability might be better in other vehicles. The REX system is noted to engage seamlessly without significant power loss. Overall, the test demonstrates the significant range improvements with larger batteries and the practical utility of the REX for extending journeys.