2020 head-to-head · Large Car

2020 Cadillac CT6 vs Genesis G80

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

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✓ Cheaper to run
$2,214/ year to fuel
21 MPG
✓ Cheaper to run
$2,214/ year to fuel
21 MPG

On fuel costs these two are nearly tied. Driving 15,000 miles a year with $3.10/gal regular gas, the most efficient 2020 Cadillac CT6 (21 MPG) costs about $2,214 a year to fuel and the 2020 Genesis G80 (21 MPG) about $2,214.

Your numbers

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

Fuel cost over 10 years

  • Cadillac CT6
  • Genesis G80

Side by side

Cadillac CT6Genesis G80
$2,214 Your annual fuel cost $2,214
21 MPG Combined efficiency 21 MPG
18 MPG City 18 MPG
27 MPG Highway 26 MPG
110 cu ft Passenger volume 108 cu ft
15 cu ft Cargo volume 15 cu ft
420 g/mi Tailpipe CO₂ (g/mi) 423 g/mi
4/10 EPA fuel economy score 4/10
4/10 EPA greenhouse gas score 4/10
Gas Powertrain Gas
Regular gasoline Fuel Regular gasoline
3.6L 6-cyl Engine / motor 3.8L 6-cyl
10-speed automatic Transmission 8-speed automatic
AWD Drivetrain RWD

✓ 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.

Cadillac CT6 vs Genesis G80 across model years

  • Cadillac CT6
  • Genesis G80

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

Among 32 2020 large cars, the Cadillac CT6 ranks 18th and the Genesis G80 19th for lowest fuel cost.

Frequently asked questions

How much does it cost to fuel the 2020 Cadillac CT6 vs. the Genesis G80 per year?

At 15,000 miles a year with $3.10/gal regular gas, about $2,214 for the Cadillac CT6 and $2,214 for the Genesis G80.

Cadillac CT6 vs Genesis G80 in other years

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