2018 head-to-head · Midsize Car

2018 Acura RLX Hybrid vs Audi A6

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
$2,116/ year to fuel
28 MPG

AWD · 3.5L 6-cyl · 7-speed dual-clutch · 28 MPG

✓ Cheaper to run
$2,116/ year to fuel
28 MPG

On fuel costs these two are nearly tied. Driving 15,000 miles a year with $3.95/gal premium gas, the most efficient 2018 Acura RLX Hybrid (28 MPG) costs about $2,116 a year to fuel and the 2018 Audi A6 (28 MPG) about $2,116.

Your numbers

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

Fuel cost over 10 years

  • Acura RLX Hybrid
  • Audi A6

Side by side

Acura RLX HybridAudi A6
$2,116 Your annual fuel cost $2,116
28 MPG Combined efficiency 28 MPG
28 MPG City 25 MPG
29 MPG Highway 34 MPG
102 cu ft Passenger volume 98 cu ft
15 cu ft Cargo volume 16 cu ft
316 g/mi Tailpipe CO₂ (g/mi) 311 g/mi
6/10 EPA fuel economy score 6/10
6/10 EPA greenhouse gas score 6/10
Hybrid Powertrain Gas
Premium gasoline Fuel Premium gasoline
3.5L 6-cyl Engine / motor 2.0L 4-cyl turbo
7-speed dual-clutch Transmission 7-speed dual-clutch
AWD Drivetrain FWD

✓ 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.

Acura RLX Hybrid vs Audi A6 across model years

  • Acura RLX Hybrid
  • Audi A6

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 Acura RLX Hybrid has more passenger space (102 vs. 98 cu ft); the Audi A6 has more cargo space (16 vs. 15 cu ft).

Among 74 2018 midsize cars, the Acura RLX Hybrid ranks 51st and the Audi A6 47th for lowest fuel cost.

The powertrains differ: the Acura RLX Hybrid is a full hybrid, while the Audi A6 is a conventional gas model.

Frequently asked questions

How much does it cost to fuel the 2018 Acura RLX Hybrid vs. the Audi A6 per year?

At 15,000 miles a year with $3.95/gal premium gas, about $2,116 for the Acura RLX Hybrid and $2,116 for the Audi A6.

Which has more cargo space?

The Audi A6, with 16 cu ft of luggage volume versus 15 cu ft (EPA interior volume index).

Acura RLX Hybrid vs Audi A6 in other years

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