2017 head-to-head · Midsize Car

2017 Cadillac CT6 Plug-in Hybrid vs Lexus GS 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
$1,793/ year to fuel
62 MPGe + 26 MPG

RWD · 2.0L 4-cyl turbo · CVT · 62 MPGe + 26 MPG

✓ Cheaper to run
$1,911/ year to fuel
31 MPG

RWD · 3.5L 6-cyl · CVT · 31 MPG

The 2017 Cadillac CT6 Plug-in Hybrid is the cheaper one to run. Driving 15,000 miles a year with 18¢/kWh electricity and $3.95/gal premium gas, it costs about $1,793 a year to fuel (62 MPGe + 26 MPG), versus $1,911 for the 2017 Lexus GS Hybrid (31 MPG). That's roughly $118 a year, or about $592 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

  • Cadillac CT6 Plug-in Hybrid
  • Lexus GS Hybrid

Side by side

Cadillac CT6 Plug-in HybridLexus GS Hybrid
$1,793 Your annual fuel cost $1,911
62 MPGe + 26 MPG Combined efficiency 31 MPG
56 MPGe / 23 MPG City 29 MPG
71 MPGe / 29 MPG Highway 34 MPG
54 kWh Electricity use (kWh/100 mi) —
440 mi Driving range —
31 mi All-electric range —
106 cu ft Passenger volume 99 cu ft
10 cu ft Cargo volume 13 cu ft
144 g/mi Tailpipe CO₂ (g/mi) 283 g/mi
9/10 EPA fuel economy score 7/10
10/10 EPA greenhouse gas score 7/10
4.5 hrs Charge time at 240V —
Plug-in hybrid Powertrain Hybrid
Premium gas + electricity Fuel Premium gasoline
2.0L 4-cyl turbo Engine / motor 3.5L 6-cyl
CVT Transmission CVT
RWD 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 Plug-in Hybrid vs Lexus GS Hybrid across model years

  • Cadillac CT6 Plug-in Hybrid
  • Lexus GS 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 Cadillac CT6 Plug-in Hybrid has more passenger space (106 vs. 99 cu ft); the Lexus GS Hybrid has more cargo space (13 vs. 10 cu ft).

Among 67 2017 midsize cars, the Cadillac CT6 Plug-in Hybrid ranks 34th and the Lexus GS Hybrid 36th for lowest fuel cost.

The powertrains differ: the Cadillac CT6 Plug-in Hybrid is a plug-in hybrid, while the Lexus GS Hybrid is a full hybrid.

Frequently asked questions

Which is more fuel-efficient, the 2017 Cadillac CT6 Plug-in Hybrid or the 2017 Lexus GS Hybrid?

Measured by cost to drive, the Cadillac CT6 Plug-in Hybrid. The Cadillac CT6 Plug-in Hybrid is rated 62 MPGe + 26 MPG combined and the Lexus GS Hybrid 31 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2017 Cadillac CT6 Plug-in Hybrid vs. the Lexus GS Hybrid per year?

At 15,000 miles a year with 18¢/kWh electricity and $3.95/gal premium gas, about $1,793 for the Cadillac CT6 Plug-in Hybrid and $1,911 for the Lexus GS Hybrid.

Which has more cargo space?

The Lexus GS Hybrid, with 13 cu ft of luggage volume versus 10 cu ft (EPA interior volume index).

Cadillac CT6 Plug-in Hybrid vs Lexus GS Hybrid in other years

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