The 2017 Mercedes-Benz B250e gets 84 MPG combined. While that figure might suggest a Prius competitor, the B250e is different. This all-electric hatchback prioritizes premium features and a comfortable cabin over maximum range. Its buyers are typically affluent urban dwellers seeking a stylish and eco-friendly car for short to medium commutes. They also understand the trade-offs to enjoy electric luxury.

City and highway performance

The B250e’s official EPA ratings show how well it does in cities. Achieving 85 MPG in the city shows the electric motor’s efficiency in stop-and-go traffic where regenerative braking recovers energy. The 82 MPG highway rating, while slightly lower, is still impressive. It’s important to remember that highway range is more sensitive to speed. Driving at high speeds constantly will drain the battery faster than city driving because of increased aerodynamic drag and less regenerative braking. These numbers are efficiency indicators compared to other electric vehicles and are not guarantees of specific range.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2017 Mercedes-Benz B250e at $900. This is based on driving 15,000 miles per year with a set percentage split between city and highway driving and the national average electricity cost at the time. This figure offers a standard for comparing running costs with gasoline-powered vehicles and other electric models. Your actual cost will depend on your electricity rates, driving habits, and how much you charge at home versus at public charging stations.

Real-world expectations

The EPA estimates give you an ideal efficiency figure, but real-world range will be affected by weather, driving style, and terrain. Colder temperatures hurt battery performance, potentially reducing range. Aggressive acceleration and frequent climate control will also reduce range. However, driving gently in moderate temperatures will maximize range and get you closer to the EPA estimates. Drivers looking for the B250E MPG across all years should research model-specific forums for user-reported data.

How it compares

The B250e balances efficiency and luxury when compared to other electric vehicles of its time. For example, the 2017 BMW i3, in its base configuration, achieves 124 MPGe combined, outperforming the B250e. However, it offers a very different driving experience and interior. The Nissan LEAF is similarly priced and sized and achieved 112 MPGe combined that year, making it more efficient if range is your priority. Even when evaluating all Mercedes Benz fuel economy data, you’ll see that this model prioritized luxury and driving feel over ultimate range. The Chevrolet Bolt, with its 119 MPGe combined, was also a good choice for buyers who didn’t need the Mercedes-Benz badge. The B250e’s appeal is more in its combination of electric power with Mercedes-Benz refinement and brand cachet.

Tips to maximize efficiency

Precondition the cabin while the car is plugged in. This uses grid electricity to heat or cool the interior before you leave and reduces the drain on the battery when you’re driving. This is particularly helpful in extreme weather.

Use regenerative braking effectively. The B250e offers adjustable levels of regenerative braking. Experiment to find the setting that suits your driving style best and allows you to “one-pedal drive” as much as possible to maximize energy recovery.

Keep optimal tire pressure. Properly inflated tires reduce rolling resistance and improve efficiency. Check your tire pressure regularly and inflate to the recommended levels on the doorjamb sticker.

Reduce unnecessary weight. Carrying a lot of cargo reduces efficiency. Remove unnecessary items from the trunk and rear seats.

Plan routes carefully, especially for longer trips. Find charging stations along your route and consider charging times to reduce range anxiety. Use navigation to map your routes to help you plan the most efficient route.