2016 head-to-head · Large Car

2016 Mercedes-Benz S-Class Plug-in Hybrid vs Porsche Panamera 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
$2,037/ year to fuel
58 MPGe + 26 MPG

RWD · 3.0L 6-cyl turbo · 7-speed automatic · 58 MPGe + 26 MPG

✓ Cheaper to run
$1,979/ year to fuel
51 MPGe + 25 MPG

RWD · 3.0L 6-cyl supercharged · 8-speed dual-clutch · 51 MPGe + 25 MPG

On fuel costs these two are nearly tied. Driving 15,000 miles a year with 18¢/kWh electricity and $3.95/gal premium gas, the most efficient 2016 Mercedes-Benz S-Class Plug-in Hybrid (58 MPGe + 26 MPG) costs about $2,037 a year to fuel and the 2016 Porsche Panamera Plug-in Hybrid (51 MPGe + 25 MPG) about $1,979.

Your numbers

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

Fuel cost over 10 years

  • Mercedes-Benz S-Class Plug-in Hybrid
  • Porsche Panamera Plug-in Hybrid

Side by side

Mercedes-Benz S-Class Plug-in HybridPorsche Panamera Plug-in Hybrid
$2,037 Your annual fuel cost $1,979
58 MPGe + 26 MPG Combined efficiency 51 MPGe + 25 MPG
54 MPGe / 24 MPG City 43 MPGe / 23 MPG
63 MPGe / 30 MPG Highway 66 MPGe / 29 MPG
59 kWh Electricity use (kWh/100 mi) 51 kWh
450 mi Driving range 560 mi
14 mi All-electric range 16 mi
112 cu ft Passenger volume 108 cu ft
9 cu ft Cargo volume 16 cu ft
227 g/mi Tailpipe CO₂ (g/mi) 229 g/mi
7/10 EPA fuel economy score 7/10
9/10 EPA greenhouse gas score 9/10
2.8 hrs Charge time at 240V 3 hrs
Plug-in hybrid Powertrain Plug-in hybrid
Premium gas + electricity Fuel Premium gas + electricity
3.0L 6-cyl turbo Engine / motor 3.0L 6-cyl supercharged
7-speed automatic Transmission 8-speed dual-clutch
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.

Mercedes-Benz S-Class Plug-in Hybrid vs Porsche Panamera Plug-in Hybrid across model years

  • Mercedes-Benz S-Class Plug-in Hybrid
  • Porsche Panamera 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

The Porsche Panamera Plug-in Hybrid goes farther between stops: about 560 miles on a full tank and charge, compared with 450 miles for the Mercedes-Benz S-Class Plug-in Hybrid.

Per EPA interior volume figures, the Mercedes-Benz S-Class Plug-in Hybrid has more passenger space (112 vs. 108 cu ft); the Porsche Panamera Plug-in Hybrid has more cargo space (16 vs. 9 cu ft).

Among 30 2016 large cars, the Mercedes-Benz S-Class Plug-in Hybrid ranks 13th and the Porsche Panamera Plug-in Hybrid 7th for lowest fuel cost.

Frequently asked questions

Which is more fuel-efficient, the 2016 Mercedes-Benz S-Class Plug-in Hybrid or the 2016 Porsche Panamera Plug-in Hybrid?

Measured by cost to drive, the Porsche Panamera Plug-in Hybrid. The Mercedes-Benz S-Class Plug-in Hybrid is rated 58 MPGe + 26 MPG combined and the Porsche Panamera Plug-in Hybrid 51 MPGe + 25 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2016 Mercedes-Benz S-Class Plug-in Hybrid vs. the Porsche Panamera Plug-in Hybrid per year?

At 15,000 miles a year with 18¢/kWh electricity and $3.95/gal premium gas, about $2,037 for the Mercedes-Benz S-Class Plug-in Hybrid and $1,979 for the Porsche Panamera Plug-in Hybrid.

Which has more range?

The Porsche Panamera Plug-in Hybrid: about 560 miles versus 450 miles.

Which has more cargo space?

The Porsche Panamera Plug-in Hybrid, with 16 cu ft of luggage volume versus 9 cu ft (EPA interior volume index).

Mercedes-Benz S-Class Plug-in Hybrid vs Porsche Panamera Plug-in Hybrid in other years

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