2023 head-to-head · Midsize Car

2023 Audi S6 Hybrid vs Bentley Flying Spur Plug-in Hybrid

MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.

Swap sides
✓ Cheaper to run
$2,693/ year to fuel
22 MPG

AWD · 2.9L 6-cyl turbo · 8-speed automatic · 22 MPG

✓ Cheaper to run
$2,588/ year to fuel
46 MPGe + 19 MPG

AWD · 2.9L 6-cyl turbo · 8-speed dual-clutch · 46 MPGe + 19 MPG

The 2023 Bentley Flying Spur Plug-in Hybrid is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas and 18¢/kWh electricity, it costs about $2,588 a year to fuel (46 MPGe + 19 MPG), versus $2,693 for the 2023 Audi S6 Hybrid (22 MPG). That's roughly $105 a year, or about $524 over five years.

Your numbers

Change these to match your driving and local prices. Every figure and chart on this page updates.

Fuel cost over 10 years

  • Audi S6 Hybrid
  • Bentley Flying Spur Plug-in Hybrid

Side by side

Audi S6 HybridBentley Flying Spur Plug-in Hybrid
$2,693 Your annual fuel cost $2,588
22 MPG Combined efficiency 46 MPGe + 19 MPG
19 MPG City 43 MPGe / 17 MPG
26 MPG Highway 50 MPGe / 22 MPG
— Electricity use (kWh/100 mi) 74 kWh
— Driving range 430 mi
— All-electric range 21 mi
99 cu ft Passenger volume 102 cu ft
14 cu ft Cargo volume 13 cu ft
408 g/mi Tailpipe CO₂ (g/mi) 251 g/mi
5/10 EPA fuel economy score 5/10
5/10 EPA greenhouse gas score 7/10
— Charge time at 240V 3 hrs
Hybrid Powertrain Plug-in hybrid
Premium gasoline Fuel Premium gas + electricity
2.9L 6-cyl turbo Engine / motor 2.9L 6-cyl turbo
8-speed automatic Transmission 8-speed dual-clutch
AWD Drivetrain AWD

✓ marks the better value. EPA scores run 1–10 (10 is best). Volumes come from the EPA interior volume index and aren't published for every body style.

Audi S6 Hybrid vs Bentley Flying Spur Plug-in Hybrid across model years

  • Audi S6 Hybrid
  • Bentley Flying Spur Plug-in Hybrid

Annual fuel cost of the most efficient configuration of each model year, at your prices. Click a point to open that year.

How they differ

Per EPA interior volume figures, the Audi S6 Hybrid has more cargo space (14 vs. 13 cu ft).

Among 50 2023 midsize cars, the Audi S6 Hybrid ranks 45th and the Bentley Flying Spur Plug-in Hybrid 43rd for lowest fuel cost.

The powertrains differ: the Audi S6 Hybrid is a full hybrid, while the Bentley Flying Spur Plug-in Hybrid is a plug-in hybrid.

Frequently asked questions

Which is more fuel-efficient, the 2023 Audi S6 Hybrid or the 2023 Bentley Flying Spur Plug-in Hybrid?

Measured by cost to drive, the Bentley Flying Spur Plug-in Hybrid. The Audi S6 Hybrid is rated 22 MPG combined and the Bentley Flying Spur Plug-in Hybrid 46 MPGe + 19 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2023 Audi S6 Hybrid vs. the Bentley Flying Spur Plug-in Hybrid per year?

At 15,000 miles a year with $3.95/gal premium gas and 18¢/kWh electricity, about $2,693 for the Audi S6 Hybrid and $2,588 for the Bentley Flying Spur Plug-in Hybrid.

Which has more cargo space?

The Audi S6 Hybrid, with 14 cu ft of luggage volume versus 13 cu ft (EPA interior volume index).

Audi S6 Hybrid vs Bentley Flying Spur Plug-in Hybrid in other years

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