The 2015 Audi R8 Spyder 5.2L 10-cyl gets a combined 16 MPG rating. This isn’t a typo, but a consequence of prioritizing a naturally aspirated V10 engine that screams to its 8,700 RPM redline in a drop-top supercar. The R8 Spyder isn’t bought for fuel efficiency, but for its visceral thrill and the symphony emanating from its exhaust. Owners of this vehicle are more concerned with 0-60 times and lateral g-forces than trips to the gas station.

City and highway performance

The EPA estimates that this R8 Spyder will achieve 13 MPG in city driving and 22 MPG on the highway. These numbers reflect the car’s character. Stop-and-go traffic neuters the V10, forcing it into a low-RPM drone where its potential is untapped. The open road is where the R8 Spyder thrives. The highway allows the engine to breathe and the suspension to function properly, allowing the driver to enjoy what they paid for. Even at a steady highway cruise, the V10 is always ready to surge forward, and that responsiveness affects fuel efficiency. This is a machine designed to be driven, not conserved.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2015 Audi R8 Spyder 5.2L 10-cyl at $3,600 per year. This calculation assumes 15,000 miles of driving annually, using a national average fuel price. Individual fuel expenditures may vary based on driving style and location, but this serves as a reasonable benchmark. Buyers considering this car should be prepared to budget significantly more for fuel than the average vehicle owner, another cost of admission into a very exclusive club.

Real-world expectations

While the EPA provides valuable estimates, real-world MPG can vary. Most R8 Spyder owners find that their actual fuel economy aligns very closely with the EPA figures, even when enjoying spirited driving. The V10 engine’s thirst is difficult to ignore, particularly if the car is frequently driven in Sport mode, as the sound alone can tempt drivers to push the engine closer to its limits. Those who use the car primarily for weekend enjoyment and short trips may see even lower figures, while owners who primarily use the R8 Spyder for longer highway trips may push the MPG slightly higher, though exceeding the EPA estimates is unlikely. Even if you are trying to drive economically, the car’s weight and powertrain will limit you.

How it compares

Few cars directly compete with the R8 Spyder in terms of its combination of performance and open-top experience, but some alternatives exist. A Porsche 911 Turbo S Cabriolet offers similar performance with a 2015 EPA-estimated combined MPG of 19, demonstrating better fuel efficiency with forced induction. A Mercedes-AMG GT C Roadster, while not directly comparable to the R8’s mid-engine layout, delivers comparable performance and luxury with an EPA-estimated 18 MPG combined. These cars are for buyers who value efficiency. For those focused solely on the R8 Spyder, reviewing R8 MPG across all years can give a broader sense of fuel consumption trends for this model line. Those interested in the bigger picture can view all Audi fuel economy data to see how the R8 compares across the Audi lineup.

Tips to maximize efficiency

Fuel economy is probably not important for most R8 Spyder owners, but some strategies can help minimize fuel consumption. Avoid aggressive acceleration and abrupt braking in city traffic. Maintaining a steady pace and anticipating traffic flow can reduce fuel consumption, and a lighter foot on the accelerator will make a difference when the engine is so responsive.

Ensure that the tires are properly inflated to the recommended pressure. Underinflated tires increase rolling resistance, which negatively impacts fuel economy. Check tire pressures regularly, especially before longer drives. In a performance car with wide tires, this makes a noticeable difference.

Use the highest gear possible at a given speed, particularly on the highway. The R8’s automatic transmission is designed to shift efficiently, but you can influence its behavior with throttle control. Allow the transmission to upshift smoothly rather than forcing it to downshift unnecessarily.

Minimize unnecessary weight in the vehicle. Removing extra items from the trunk and passenger compartment reduces the overall load on the engine, improving fuel economy. It’s easy to overlook the added weight of personal belongings that accumulate over time.

Avoid idling for extended periods, as this consumes fuel without covering any distance. If you anticipate being stopped for more than a minute or two, turn off the engine. Modern engines are designed to restart quickly and efficiently, minimizing any inconvenience.