26 MPG combined barely registers on the radar for most economy-minded drivers, but for the few drawn to the 2021 Audi TT Roadster quattro 2.0L 4-cyl, it represents an acceptable compromise. This isn’t a car bought for maximizing efficiency; it’s a statement, a visceral experience wrapped in a compact, stylish package. Buyers prioritize open-air thrills, all-weather grip, and the prestige of the Audi badge far more than squeezing every last mile from a gallon of premium fuel. They understand that character comes at a price, and for them, that price is one they’re willing to pay.

City and highway performance

Looking at the EPA data reveals a split between urban and open-road efficiency. The 2021 TT Roadster achieves 23 MPG in the city. Stop-and-go traffic, frequent acceleration bursts, and the engine’s inherent eagerness to rev all contribute to this figure. Out on the highway, however, the TT Roadster stretches its legs, delivering a respectable 31 MPG. This is where the 7-speed automatic transmission works well, settling into higher gears and allowing the 2.0L turbocharged engine to cruise comfortably and efficiently. Long-distance drives are still a treat, even if the fuel gauge moves a little faster than in a dedicated fuel sipper.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2021 Audi TT Roadster quattro at precisely $1,700. This figure is based on driving 15,000 miles per year, with a 55/45 split between city and highway driving, and using the current national average fuel price for premium gasoline. This is just an estimate, your actual fuel costs will vary depending on your driving habits, the type of roads you typically travel, and fluctuations in fuel prices. Anyone considering an Audi TT should factor this cost into their overall budget.

Real-world expectations

While the EPA estimates provide a useful baseline, real-world fuel economy can vary. Aggressive driving, frequent use of the sport mode, and extended idling can all negatively impact the MPG you experience. Similarly, driving primarily on the highway at a constant speed will likely result in better-than-estimated economy. Roadsters tend to encourage a more spirited driving style, so owners should not be too surprised if their average MPG falls slightly below the EPA’s combined rating.

How it compares

Compared to other sporty convertibles, the Audi TT Roadster’s fuel economy is reasonably competitive. The BMW Z4 sDrive30i, for example, offers a similar driving experience and returns an EPA-estimated 28 MPG combined. The Mazda MX-5 Miata, while less powerful and luxurious, boasts significantly better fuel economy, achieving 30 MPG combined. Those focused on optimal efficiency might also consider the Mini Cooper Convertible, rated at 31 MPG combined, but they would sacrifice the TT’s quattro all-wheel drive and premium feel. If you are interested in seeing all Audi fuel economy data, you can compare the TT directly to other models in the lineup. For specific details on TT MPG across all years, you can research archived data.

Tips to maximize efficiency

Take advantage of the Audi Drive Select system. The “Efficiency” mode optimizes engine and transmission settings for maximum fuel economy. The system reduces throttle response and encourages earlier upshifts, without dramatically impacting performance. Use this mode for daily commutes when driving enjoyment is a secondary concern.

Regularly check your tire pressure. Underinflated tires increase rolling resistance, which hurts fuel economy. Consult the sticker on your driver’s side doorjamb for the recommended tire pressure for your TT Roadster. A simple tire pressure check is an easy way to improve efficiency without sacrificing performance.

Minimize idling. Modern engines do not need to be warmed up for extended periods. Avoid leaving your engine running unnecessarily, especially in cold weather. Idling consumes fuel without covering any distance. Even short periods of idling can add up considerably over time.

Drive smoothly and avoid hard acceleration. The turbocharged engine in the TT Roadster delivers ample torque, but using that power constantly will negatively affect fuel economy. Anticipate traffic flow, brake gradually, and accelerate smoothly to minimize fuel consumption. The better you are on the throttle, the better your fuel economy will be.

Keep the car well-maintained. Regular oil changes, air filter replacements, and spark plug maintenance can all contribute to optimal engine performance and fuel efficiency. Neglecting these maintenance items can gradually degrade the engine’s ability to operate efficiently, costing you extra fuel.