Audi Q8 vs Ford Expedition: Specs Compared

Running cost over five years: at the EPA's 15,000-mile-a-year assumption the Ford Expedition burns about $3,100 of fuel annually against $3,800 for the Audi Q8. That $700 yearly gap compounds to roughly $3,500 over five years and $5,600 over eight — often more than the price difference between two trims of the same vehicle, and the single largest running-cost line item separating these two.

City versus highway split: the Audi Q8 is the stronger commuter at 18 mpg city, while the Ford Expedition pulls ahead on the interstate at 24 mpg highway. If most of your driving is stop-and-go traffic the city figure is the one to weigh; for long-distance highway mileage the reverse is true, and the two vehicles effectively swap places depending on how you drive.

Powertrain choice: the Audi Q8 is recorded with 1 distinct engine configuration (SIDI; Mild Hybrid), the Ford Expedition with 3 (SIDI & PFI, SIDI, SIDI; Stop-Start). Across 9 recorded Audi Q8 configurations and 49 for the Ford Expedition, the wider the engine spread the more the real-world fuel efficiency depends on which version you actually buy, so check the specific model year and drivetrain rather than the headline number.

Drivetrain and class: the Audi Q8 is offered with All-Wheel Drive, the Ford Expedition with Part-time 4-Wheel Drive, Rear-Wheel Drive. All-wheel drive typically costs one to two mpg combined against the same vehicle in front- or rear-wheel drive, which is worth remembering when the gap between these two is small. The EPA classes them as Standard Sport Utility Vehicle 4WD and Standard Sport Utility Vehicle 4WD respectively — the class drives the interior volume, cargo space and passenger space each one is measured against.

Tailpipe emissions: at their cleanest configurations the Audi Q8 emits 439 g/mile of CO2 versus 441 g/mile for the Ford Expedition. Emissions track fuel consumption almost exactly, so the cleaner vehicle here is also the cheaper one to fuel.