124 MPG combined defines the 2017 BMW i3 BEV. It’s the core of this quirky, purpose-built electric city car. Owners want maximum efficiency and minimal environmental impact, all wrapped in a distinctive BMW-engineered package.

City and highway performance

The i3’s EPA ratings show its strengths and weaknesses. The 137 MPG city figure reflects the i3’s regenerative braking system, which recaptures energy during deceleration and feeds it back into the battery. This is where the i3 excels, especially in stop-and-go traffic. The instant torque from the electric motor makes it surprisingly quick off the line. However, on the highway, efficiency drops to 111 MPG. This happens because of the increased energy required to overcome aerodynamic drag at higher speeds, a common characteristic of electric vehicles. The i3’s boxy shape contributes to its distinctive look and interior space, but it isn’t very aerodynamic.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2017 BMW i3 is about $600. This is based on driving 15,000 miles per year with a national average electricity cost of $0.14 per kilowatt hour. This is good for those wanting to minimize their running costs. Electricity prices vary regionally, but the I3 MPG offers significant savings over even the most fuel-efficient gasoline-powered vehicles. For drivers with access to off-peak charging rates or solar power, the actual cost could be lower.

Real-world expectations

The EPA estimates are a useful benchmark, but real-world I3 MPG will vary depending on driving style, climate, and terrain. Aggressive acceleration and frequent use of air conditioning or heating can reduce range and efficiency. Driving gently, using regenerative braking effectively, and preconditioning the cabin while plugged in can help maximize range. Cold weather can affect battery performance, as batteries are less efficient at lower temperatures. Plan your journeys accordingly, especially on longer trips. Review all Bmw fuel economy data to see how consistent they usually are in testing.

How it compares

The 2017 i3 performed well compared to other electric vehicles of its time. The Nissan LEAF offered a similar range but with a more conventional hatchback design and an EPA combined rating of around 112 MPG. The Chevrolet Bolt, which debuted around the same time, had a longer range and a combined rating of 119 MPG. The i3 has a unique design and premium feel. The i3 buyer values style and brand cachet, accepting a slightly lower range for the BMW driving experience and forward-thinking look. If you are looking to go older or newer to target a different MPG, check out I3 MPG across all years so you can compare the data.

Tips to Maximize Efficiency

Regenerative braking is helpful. Anticipate stops and coast whenever possible, allowing the motor to recapture energy rather than relying solely on the friction brakes. The i3 offers different levels of regenerative braking; experiment to find the setting that suits your driving style and maximizes energy recovery.

Precondition the cabin while the car is plugged in. Heating or cooling the interior before you unplug reduces the energy demand on the battery while driving. This is beneficial in extreme temperatures and can extend your range.

Minimize use of accessories. Features like air conditioning and heating consume significant amounts of energy. Use them sparingly, opting for seat heaters or ventilation when possible. Driving at lower speeds is best for fuel economy.

Keep tires properly inflated. Underinflated tires increase rolling resistance, which reduces efficiency. Check your tire pressure regularly and inflate them to the recommended levels.

Use the “Eco Pro” driving mode. This mode optimizes vehicle systems for maximum efficiency, including throttle response and climate control. It may take some getting used to, but it can make a difference in your overall energy consumption.