The 2019 BMW i8 Roadster has a combined EPA rating of 27 MPG. It isn’t focused on fuel efficiency above all else. It’s a statement that showcases technological ambition and hybrid ingenuity. Buyers are choosing a car that draws attention, delivers exciting performance, and manages fuel consumption with surprising restraint considering its design and sporting intentions.

City and highway performance

The i8’s fuel economy is 26 MPG in the city and 29 MPG on the highway, which might seem underwhelming at first. But the i8 Roadster has a plug-in hybrid powertrain within a carbon-fiber reinforced plastic (CFRP) chassis and futuristic bodywork. The 1.5L 3-cylinder engine, aided by an electric motor, works with the 6-speed automatic transmission for quick acceleration.

Its electric motor allows short trips on electric power alone, especially in the city, improving fuel numbers. The highway MPG rating shows how efficiently the i8 can cruise at higher speeds, relying more on the gasoline engine but still using the electric motor for acceleration.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2019 BMW i8 Roadster at $2,150. This is calculated based on 15,000 miles per year, a mix of city and highway driving, and national average fuel prices. This gives potential owners a benchmark to understand the i8’s fueling cost compared to other vehicles. While $2,150 is a significant expense, many i8 owners likely have other vehicles, and the i8 won’t be their only car. Also, plugging in the car and driving short distances on electric power can lower fuel spending and the annual fuel bill.

Real-world expectations

The 27 MPG combined rating is a reasonable baseline, but expect changes based on driving and charging habits. Those who plug in the i8 Roadster to maximize electric driving will see better fuel economy than those who rarely charge. Aggressive driving, frequent use of “Sport” mode, and extended high-speed cruising will lower MPG. Prioritizing electric driving in urban environments and gentle acceleration will increase efficiency. Driving style affects the numbers, as with any vehicle, but remember to check I8 MPG across all years to see how various model years perform.

How it compares

The i8’s fuel economy is respectable compared to other performance vehicles. A Porsche 911 Carrera S, for example, gets around 21 MPG combined. Even a sports coupe like the Audi TTS gets close to 26 MPG, slightly less than the i8.

A dedicated electric vehicle like a Tesla Model 3 Long Range is more efficient since it doesn’t use gasoline, and achieves the equivalent of 132 MPGe. However, the Model 3 lacks the visual appeal of the i8. Buyers choosing the i8 value its style, performance, and semi-electric operation knowing that all Bmw fuel economy data might showcase more efficient models.

Tips to maximize efficiency

Prioritize electric driving in the city. The i8 Roadster’s electric motor works best at lower speeds, allowing short commutes and errands without using gasoline. Keep the battery charged whenever possible using home or public charging stations. Frequent charging helps realize the i8’s efficiency potential.

Use “Comfort” or “Eco Pro” mode for everyday driving. These modes optimize the powertrain for efficiency, reducing throttle response and maximizing electric motor assistance. “Sport” mode prioritizes performance and consumes more fuel (and battery charge). Reserve “Sport” mode for when you want maximum performance.

Anticipate traffic and coast whenever possible. Smooth acceleration and braking improve efficiency and extend brake life. Lifting off the accelerator early allows the regenerative braking system to recapture energy and recharge the battery, reducing fuel consumption.

Maintain proper tire inflation. Underinflated tires increase rolling resistance, hurting fuel economy. Check your tire pressure regularly and inflate tires as outlined in the owner’s manual. Also, use the recommended tires for efficiency and grip.

Minimize aerodynamic drag. Driving with the top down reduces fuel economy at higher speeds. If you’re planning a long highway trip, keep the top up to reduce drag and improve fuel efficiency. Ensure the vehicle has no aftermarket accessories that negatively impact its aerodynamics.