2026 Mercedes-Benz S 580e 4MATIC

Luxury · 3.0L Turbo I6 PHEV · AWD

90/100

AutoVault's overall score, weighted for what a luxury is actually for — performance, technology, comfort, reliability, safety and value.

Specifications

Engine	3.0L Turbo I6 PHEV
Horsepower	510 hp
Torque	553 lb-ft
0–60 mph	4.6 sec
Top speed	130 mph
Drivetrain	AWD
Seats	5
Combined MPG	19 mpg (16 city / 23 hwy)
Range	328 miles
MSRP	$130,400
Body style	Luxury

The verdict

What's good

Real electric-only daily driving
Smooth, soundless low-speed running
Limousine comfort and silence
Low running costs when home-charged

What's not

Reduced trunk from battery pack
Engine recharges the battery slowly
Expensive servicing later in life
Hefty curb weight

The engine

M256

3.0L Turbo I6 Plug-in Hybrid

Mercedes pairs its silky M256 straight-six with a plug-in hybrid system for long electric-only range plus a strong, refined combined punch — luxury that can glide silently or surge hard.

The straight-six was revived in 2017 specifically because its natural balance and packaging suit electrification; in PHEV form it offers some of the longest electric ranges of any plug-in hybrid.

Some versions can travel over 50 miles on electricity alone before the six even starts.
The inline-six's perfect balance needs no balance shafts, leaving room for the hybrid hardware.

See the rest in AutoVault

The six sub-scores behind the 90 — performance, tech, comfort, reliability, safety and value
Market value today and year-by-year value history
All 4 trims with pricing
Studio photography — exterior, rear and interior
Side-by-side comparison with up to four cars

Open in AutoVault