2016 head-to-head · Large Car

2016 Cadillac XTS vs Tesla Model S

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
$2,214/ year to fuel
21 MPG
✓ Cheaper to run
$864/ year to fuel
104 MPGe

The 2016 Tesla Model S is the cheaper one to run. Driving 15,000 miles a year with $3.10/gal regular gas and 18¢/kWh electricity, it costs about $864 a year to fuel (104 MPGe), versus $2,214 for the 2016 Cadillac XTS (21 MPG). That's roughly $1,350 a year, or about $6,751 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 XTS
  • Tesla Model S

Side by side

Cadillac XTSTesla Model S
$2,214 Your annual fuel cost $864
21 MPG Combined efficiency 104 MPGe
18 MPG City 101 MPGe
28 MPG Highway 107 MPGe
— Electricity use (kWh/100 mi) 32 kWh
— Driving range 218 mi
104 cu ft Passenger volume 94 cu ft
18 cu ft Cargo volume 26 cu ft
410 g/mi Tailpipe CO₂ (g/mi) 0 g/mi
5/10 EPA fuel economy score 10/10
5/10 EPA greenhouse gas score 10/10
— Charge time at 240V 12 hrs
Gas Powertrain Electric
Regular gasoline Fuel Electricity
3.6L 6-cyl Engine / motor Electric motor (60 kW)
6-speed automatic Transmission Single-speed
FWD 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.

Cadillac XTS vs Tesla Model S across model years

  • Cadillac XTS
  • Tesla Model S

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 XTS has more passenger space (104 vs. 94 cu ft); the Tesla Model S has more cargo space (26 vs. 18 cu ft).

Among 30 2016 large cars, the Cadillac XTS ranks 16th and the Tesla Model S 1st for lowest fuel cost.

Because the Tesla Model S is fully electric, it has no tailpipe emissions and its running cost depends almost entirely on your electricity rate. Cheap overnight home charging widens its advantage over the Cadillac XTS; relying on DC fast chargers can erase it.

Frequently asked questions

Which is more fuel-efficient, the 2016 Cadillac XTS or the 2016 Tesla Model S?

Measured by cost to drive, the Tesla Model S. The Cadillac XTS is rated 21 MPG combined and the Tesla Model S 104 MPGe (EPA, most efficient configuration of each).

How much does it cost to fuel the 2016 Cadillac XTS vs. the Tesla Model S per year?

At 15,000 miles a year with $3.10/gal regular gas and 18¢/kWh electricity, about $2,214 for the Cadillac XTS and $864 for the Tesla Model S.

Which has more cargo space?

The Tesla Model S, with 26 cu ft of luggage volume versus 18 cu ft (EPA interior volume index).

Cadillac XTS vs Tesla Model S in other years

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