26 MPG combined is an efficient figure for a car as dedicated to performance as the 2025 Toyota GR Supra 3.0L 6-cyl. This isn’t just a sports car; it’s a finely tuned driving instrument, a direct descendant of a legendary nameplate, designed to deliver visceral thrills and a direct connection to the road. The fact that it achieves this level of economy while packing a potent 3.0-liter turbocharged inline-six shows that exhilarating performance doesn’t have to come at the expense of reasonable running costs. Buyers of the GR Supra aren’t typically driven solely by frugality, but they appreciate intelligent design and efficiency when it underpins uncompromising performance. They are enthusiasts who live for the twisties, the sound of the engine at full song, and the precise feedback of a well-balanced chassis. For them, 26 MPG isn’t merely a number; it’s confirmation that their daily dose of driving excitement won’t perpetually drain their wallet, leaving more funds for track days or aftermarket upgrades.

City and highway performance

The EPA rates the 2025 GR Supra 3.0L at 23 MPG in the city and 31 MPG on the highway. These figures paint a clear picture of the car’s dual personality. The 23 MPG in urban environments is perfectly respectable for a high-performance coupe, where stop-and-go traffic and spirited bursts of acceleration are common. The single-turbo 3.0-liter engine, paired exclusively with an 8-speed automatic transmission, manages its power delivery with intelligent mapping, ensuring that even in congested settings, fuel isn’t needlessly squandered. However, it’s on the open road where the GR Supra truly shines in terms of both performance and efficiency. The 31 MPG highway rating is excellent for its class, allowing owners to embark on long road trips or spirited drives through scenic routes without constantly eyeing the fuel gauge. This highway efficiency is a direct benefit of the car’s aerodynamic design, the torque-rich inline-six that can cruise effortlessly at low RPMs, and the well-judged gear ratios of the automatic transmission. It’s the kind of efficiency that makes impromptu weekend getaways all the more appealing, reinforcing the Supra’s credentials as a genuine grand tourer that can also attack a canyon road with ferocity.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2025 Toyota GR Supra 3.0L 6-cyl at $2,250. This figure is calculated based on an assumption of 15,000 miles driven per year, using national average fuel prices, and factoring in the combined MPG rating of 26. This estimate provides a tangible benchmark for owners to understand a significant portion of their operational expenses. For a performance vehicle like the GR Supra, an annual fuel cost of $2,250 is quite competitive, offering a degree of predictability that some of its more exotic rivals might lack. It underscores the “everyday usable” aspect of the Supra, showing that while it delivers supercar-aping acceleration and handling, it doesn’t carry the exorbitant running costs often associated with such machines. This specific figure is a significant data point for the prospective buyer who might be cross-shopping the Supra against vehicles with vastly different fuel appetites, providing a clear financial reference for planning and budgeting.

Real-world expectations

In real-world driving, owners of the 2025 GR Supra 3.0L can generally expect to meet or even slightly exceed the EPA’s combined 26 MPG, provided they employ a conscious approach to driving. Enthusiasts who push the car hard, frequently exploring the upper reaches of the tachometer, will naturally see figures closer to the city rating, or even below it, especially during track days or aggressive backroad blasts. However, the Supra’s turbocharged inline-six, with its broad torque curve, encourages relaxed driving when desired. Cruising on the highway with the adaptive cruise control engaged or navigating suburban routes with a light right foot can easily yield results in the high 20s or even surpass the 31 MPG highway figure. The 8-speed automatic transmission is a key enabler here, quickly upshifting to taller gears to keep RPMs low and minimize fuel consumption. Consistent use of “Sport” mode, with its sharper throttle response and later shift points, will predictably consume more fuel, but this is a trade-off Supra owners are more than willing to make for the heightened driving experience.

How it compares

When stacked against its primary competitors, the 2025 Toyota GR Supra 3.0L offers good fuel efficiency. Consider the Porsche 718 Cayman S, a benchmark for sports car dynamics, its 2.5L turbocharged flat-four delivers 21 MPG combined (19 City / 24 Highway). Here, the Supra’s 26 MPG combined (23 City / 31 Highway) is a clear advantage, offering superior economy while providing comparable, if not potentially greater, straight-line performance. Another relevant comparison is the BMW Z4 M40i, which shares much of its underpinnings with the Supra, including the engine. The Z4 M40i also achieves 26 MPG combined (23 City / 31 Highway), reaffirming the efficiency potential of this specific powertrain and chassis combination. Looking at a more traditional American muscle car entry, like the Ford Mustang GT with its 5.0L V8 and 10-speed automatic, you’ll find a combined rating of 18 MPG (15 City / 24 Highway). For the buyer prioritizing accessible performance with a nod to efficiency, the Supra stands out significantly from such V8-powered alternatives. Similarly, for those exploring all Toyota fuel economy data, the GR Supra showcases how a dedicated high-performance model can still maintain respectable fuel consumption. The buyer choosing the Supra values precision, balance, and a modern approach to power delivery, and these comparisons underscore its intelligent engineering in the realm of fuel economy. For further insight into the evolution of this performance line, exploring GR MPG across all years is also recommended.

Tips to maximize efficiency

Maintain consistent speeds on the highway and use the Supra’s adaptive cruise control. This small adjustment smooths out throttle inputs, avoids unnecessary braking and accelerating, and allows the powertrain to operate in its most efficient range.

Regularly check and maintain proper tire pressure. Underinflated tires increase rolling resistance, forcing the engine to work harder and consume more fuel, while properly inflated tires ensure the car’s performance and efficiency characteristics are optimized.

Anticipate traffic conditions and practice smooth acceleration and braking. The powerful 3.0L engine encourages spirited driving, but gentle throttle modulation and coasting when appropriate will significantly impact your urban MPG.

Avoid excessive idling, especially during longer waits. If you know you’ll be stopped for more than a minute, shutting off the engine can conserve a notable amount of fuel, though the Supra’s automatic start/stop system typically handles this automatically.

Minimize the use of heavy accessories like the air conditioning when not absolutely necessary. While convenient, these systems place additional load on the engine, subtly increasing fuel consumption over time.