2025 Bentley Flying Spur MPG & Specs — Real Fuel Cost
Quick answer
The 2025 Bentley Flying Spur gets an EPA-estimated 17/22 MPG (city/highway) and 19 MPG combined, with an estimated $4,000/year fuel cost and 161 g/mi CO₂. Engine: 4 L 8-cyl.
The 2025 Bentley Flying Spur with the 4-liter 8-cylinder premium gasoline engine returns an EPA-estimated 17 MPG in the city and 22 MPG on the highway, for a combined 19 MPG. This page summarizes the official EPA fuel-economy and emissions data for this configuration.
| Engine | 4 L 8-cyl |
| Transmission | Automatic (AM-S8) |
| Drive | All-Wheel Drive |
| Fuel type | Premium Gasoline |
| Vehicle class | Midsize Cars |
| MPG — city | 17 |
| MPG — highway | 22 |
| MPG — combined | 19 |
| Annual fuel cost* | $4,000 |
| CO₂ tailpipe | 161 g/mi |
| EPA GHG score | 8/10 |
| Electric range | 440 mi |
How efficient is it?
With a combined 19 MPG, the 2025 Bentley Flying Spur sits in the low range for fuel economy. That is roughly 26% thirstier than the typical Midsize Cars of its era (26 MPG class average) — expect higher fuel bills than class-average alternatives.
Fuel economy and running costs
At about $4,000 per year in fuel (EPA estimate, 15,000 mi/yr), fuel is a major part of the cost of owning the 2025 Bentley Flying Spur. Over five years that is roughly $20,000 at today's prices — before insurance, maintenance, and depreciation.
Emissions
The 2025 Bentley Flying Spur emits approximately 161 grams of CO₂ per mile at the tailpipe, earning an EPA greenhouse-gas score of 8 out of 10. Lower emissions generally track higher fuel economy.
How to read these numbers
EPA figures come from standardized laboratory test cycles and are the same estimates shown on the vehicle's window sticker. Your real-world mileage depends on driving style, conditions, fuel grade, and maintenance. Use combined MPG and annual fuel cost to compare vehicles fairly.