I have owned a 2019 i3 120Ah (42.2 kWh) for 2 years now. Here are my real numbers:
Range: Summer I get 260-280km real world. Winter (below -5C) drops to 180-200km. Heating is the biggest drain — use the seat heaters instead of cabin heating and you gain 20-30km. Pre-conditioning while plugged in makes a huge difference.
Battery degradation: My battery health shows 94% after 55k km and 6 years. The i3 battery management is excellent — BMW was conservative with the usable capacity which helps longevity.
REx: I had the REx version initially and traded it for the pure EV. The range extender adds weight, complexity, and maintenance costs (oil changes, fuel system). For a 35km commute you absolutely do not need it. The pure EV is the better buy.
Maintenance: Basically nothing. Brake pads last forever because of regenerative braking — mine are at 80% after 55k km. Tires are the main cost — the i3 uses narrow 155/70R19 fronts and 175/60R19 rears which are not cheap (about 150 EUR each). Cabin filter and washer fluid are the only regular services.
Coding: Bimmercode works on the i3. You can enable sport mode display, change charging settings, disable the annoying pedestrian warning sound, and customize the ambient lighting.
The i3 is a fantastic city car and one of the best used EV values right now. The CFRP body is a double-edged sword — it will never rust and is incredibly light (the i3 weighs only 1270kg) but if you have an accident, repair costs are 2-3x a normal car. A simple fender bender that would cost 500 EUR on a normal car can be 2000+ EUR on an i3 because the CFRP panels need specialist repair or replacement. Insurance premiums reflect this — expect to pay 15-20% more than a comparable conventional car.
One thing people overlook: the i3 has a turning circle of just 9.86 meters which is smaller than a MINI. Combined with the instant electric torque, it is genuinely the best city car I have ever driven. The rear-hinged coach doors take some getting used to but they make getting in and out in tight parking spaces much easier.
For charging, get a home wallbox if possible. The i3 onboard charger is 11kW AC which means a full charge from empty takes about 4 hours on a wallbox. The CCS DC charging goes up to 50kW — not the fastest by 2026 standards but adequate for occasional road trips.
