The 2017 BMW i3 BEV (94 Amp-hour battery) gets an EPA-rated 118 MPGe combined, making it very efficient. This isn’t just about saving money on gas. it’s about quiet, zero-emissions driving powered by electricity. The i3 appeals to a specific buyer: someone who wants less gas, likes unusual designs, and usually drives short commutes or errands, almost exclusively in a city or suburban area.

City and highway performance

The i3’s MPGe numbers show its strengths and weaknesses. It gets a stellar 129 MPGe in the city. That reflects the benefits of regenerative braking and the electric motor’s instant torque, which makes it very efficient in stop-and-go traffic. The 106 MPGe highway figure shows a drop-off, typical of EVs. At sustained high speeds, it takes more energy to overcome aerodynamic drag, which reduces the i3’s efficiency. The i3’s small battery and focus on maximizing short-distance efficiency mean it’s not suited for long road trips where you drive consistently fast.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2017 BMW i3 BEV at $650. This figure is based on driving 15,000 miles per year, with a percentage allocated to city and highway driving using national average electricity prices when the estimate was calculated. This is important for prospective buyers. The purchase price of a new i3 could be higher than some gasoline-powered cars, but the lower running costs, especially the cost of electricity versus gasoline, lead to long-term savings. The cost can vary depending on electricity prices in your area, time-of-use rates, and how often you charge at public charging stations versus at home.

Real-world expectations

The EPA numbers provide a good baseline, and real-world MPGe for the i3 depends on driving habits and conditions. Quick acceleration, frequent use of climate control, and cold weather can reduce efficiency and range. However, gentle acceleration, preconditioning the cabin while plugged in, and using the “Eco Pro” mode can extend range and improve MPGe. Many i3 owners report figures close to the EPA estimates during typical daily driving, but range, and therefore MPGe, can change quite a bit.

How it compares

The 2017 i3’s 118 MPGe is impressive. The Nissan Leaf offered around 112 MPGe combined at the time. The Chevrolet Bolt, now more popular as a used EV, was similar to the i3. The Leaf and Bolt offered different range estimates, and they were both direct competitors. Buyers in this segment compare efficiency metrics. Someone isn’t choosing between an i3 and a gasoline-powered 3 Series, and they’re often cross-shopping all-electric alternatives, weighing range, charging infrastructure, and operating costs. You can review all Bmw fuel economy data on our site

Tips to maximize efficiency

Use the “Eco Pro” and “Eco Pro+” modes whenever possible. These modes remap the throttle response, limit top speed, and reduce climate control output to maximize range. Get used to one-pedal driving. By carefully modulating the accelerator, you can maximize regenerative braking and minimize the need to use the physical brake pedal, recovering more energy and increasing range.

Precondition the cabin while the i3 is plugged in, especially on cold mornings. This reduces the energy demand on the battery to heat the cabin once you start driving, preserving range. Schedule charging to occur during off-peak hours, which can lower your electricity costs. Many utility companies offer discounted rates during these times.

Minimize unnecessary weight in the vehicle. While this applies to all cars, it’s important in an EV where every pound reduces efficiency. Remove items from the trunk or passenger area that aren’t essential. Regularly check the tire pressure and ensure it’s at the recommended level. Underinflated tires increase rolling resistance, reducing efficiency. The correct tire pressure can be found on a sticker inside the driver’s side doorjamb.

Plan your routes strategically, using navigation apps that show real-time traffic conditions and charging station locations. This allows you to avoid congestion and optimize your route for efficiency. It makes sure you have charging options available when needed. Be aware of your routes’ elevation changes. EVs use more energy going uphill than on flat land or downhill, just like gas models. See the I3 MPG across all years on our site.