Introduced in late 2013, the BMW i3 was a pioneering compact electric vehicle available in both all-electric and range-extender models. Despite being nearly a decade old, its advanced technology sets it apart, making it relevant as a second-hand purchase today.
2013 BMW i3Body and Chassis
Colin Chapman, the founder of Lotus, famously said that "adding lightness" is essential, and BMW embraced this philosophy with the i3. The vehicle's construction utilized carbon fiber reinforced plastic (CFRP), aluminum, and magnesium—materials typically not found in mainstream production cars due to their high cost and production complexity.
The i3 comprises two primary modules: the life module, which houses the passenger compartment, made of CFRP for exceptional stiffness and occupant safety, and the drive module, constructed from aluminum, which contains the chassis and drive components. This innovative approach resulted in a weight of just 1,270 kg for the initial i3 model with an 18.8 kWh battery, setting a precedent for mass-produced vehicles.
The carbon and aluminum construction of the BMW i3Powertrain and High Voltage System
Built on a dedicated electric vehicle platform, the i3 features a rear-mounted engine that powers the rear axle, optimizing longitudinal acceleration—especially beneficial in electric vehicles due to immediate torque delivery. The car was equipped with a highly efficient 3-phase permanent magnet synchronous motor, achieving up to 94% efficiency.
Offering two power outputs—170 hp and 184 hp for the upgraded “S” variant—the i3 boasted maximum torque figures of 250 Nm and 270 Nm, respectively. The single-speed gearbox provided a reduction ratio of 9.67:1, resulting in impressive wheel torque values of 2418 Nm and 2611 Nm for the “S” version, enabling acceleration from 0-100 km/h in 7.2 seconds and 6.9 seconds, respectively.
The i3 featured three liquid-cooled battery versions throughout its lifespan: 60Ah, 94Ah, and 120Ah lithium-ion units, translating to net energy capacities of 18.8 kWh, 27.2 kWh, and 37.9 kWh, offering ranges from 160 km to 285 km. Additionally, a range-extender variant with a 647 cc twin-cylinder engine provided extended range capabilities.
The 120 Ah/37.9 kWh high voltage battery of the BMW i3Running Gear
The BMW i3 featured fully independent suspension for both axles, utilizing a traditional McPherson strut design in the front and an advanced five-link setup in the rear, combining excellent handling with comfortable ride quality. However, the wheel and tire selection was unconventional, featuring a narrow 155 mm width for reduced aerodynamic drag and rolling resistance.
The sportier “S” variant adopted a different tire combination with wider dimensions, enhancing performance. The braking system featured ventilated discs on all wheels, with regenerative braking mainly handled by the motor, achieving maximum recuperation power of 50 kW. The i3 also offered favorable aerodynamic characteristics, with a projected area of 0.69 m² and a drag coefficient of 0.29.
The advanced 5 link rear suspension of the BMW i3Interior Philosophy
The innovative approach of the BMW i3 extended to its interior, featuring a B-pillar-less design with opposing front and rear doors, contributing to an airy cabin feel. The layout included a compact instrument cluster and a larger freestanding infotainment display, setting trends in automotive design.
In terms of materials, the i3 emphasized sustainability with elements like recycled plastics, eucalyptus wood, and kenaf plant fibers, underscoring its eco-friendly position in the market. This focus on sustainability was integral to the car's design philosophy.
BMW i3 interiorIs the BMW i3 Still Relevant Today?
The BMW i3 remains a relevant choice in the used electric vehicle market. The advanced technology and materials contribute to its appeal, although the energy capacity of its battery—capped at 37.9 kWh—may be limiting for long-distance travel. Nevertheless, it serves excellently for city driving, with sufficient range for occasional rural trips.
BMW i3SWhen examining market prices, the average cost for a used BMW i3 is around $26,178, reflecting a 33.9% increase from the previous year. Listings on CarGurus show prices ranging from $13,990 to $47,500, while mobile.de features offers from €14,400 for older models to €47,900 for newer variants. UK prices show a similar range, with listings between £21,795 and £40,900.
