
Stay up to date by tracking the KBB.com Fair Purchase Price.

Fair Purchase Price is determined by collecting thousands of actual consumer vehicle purchase prices, plus data from national vehicle registration databases and several other reliable third-party sources.
Condition | Trade-In Value | Private Party Value | ||
|---|---|---|---|---|
Excellent | $43,950 | $46,170 | ||
Very Good | $43,150 | $45,370 | ||
Good | $42,250 | $44,370 | ||
Fair | $40,050 | $42,070 |
Estimated Trade-In Values for the 2021 Mercedes-Benz S-Class S 500 4MATIC Sedan 4D range from about $40,050 to $43,950 depending on vehicle condition. Estimated Private Party Values range from about $42,070 to $46,170 depending on vehicle condition. Valid for ZIP Code 92395 through 5/24/2026.
Curb Weight | 4740 lbs. | ||
|---|---|---|---|
Fuel Capacity | 22.0 gallons | ||
Front Head Room | 42.1 inches | ||
Max Seating Capacity | 5 | ||
Overall Length | 208.2 inches | ||
Front Shoulder Room | 59.6 inches | ||
Trunk or Cargo Capacity | 13.8 cu.ft. | ||
Wheel Base | 126.6 inches | ||
Width with mirrors | 83.0 inches |
Adaptive Headlights | Available | ||
|---|---|---|---|
Alloy Wheels | Available | ||
Moon Roof/Sun Roof | Available | ||
Number of Doors | 4 doors | ||
Panorama Moon Roof | Available | ||
Power Folding Exterior Mirrors | Available | ||
LED Headlights | Available | ||
Rear Spoiler | Available |
City | 20 mpg | ||
|---|---|---|---|
Highway | 29 mpg | ||
Combined | 24 mpg |
Drivetrain | AWD | ||
|---|---|---|---|
Transmission Type | Automatic | ||
9 speed | Available | ||
Recommended Fuel | Premium | ||
Hill Start Assist | Available | ||
Parking Assist System | Available |
Horsepower | 429 @ 6100 RPM | ||
|---|---|---|---|
Torque | 384 @ 1800 rpm | ||
Engine | V6, Twin Turbo, 3.0 Liter | ||
0 to 60 | 4.9 seconds |
Basic | 4 years / 50000 miles | ||
|---|---|---|---|
Powertrain | 4 years / 50000 miles | ||
Corrosion | 4 years / 50000 miles |
4Matic all-wheel drive. Packed with technology. Available rear-seat airbags. Available rear-wheel steering. Two powerful engines.
Starts at $109,800. No plug-in hybrid…yet. AMG Line has reduced rear steering angle. Too conservatively styled?.
![]() Used 2021 Mercedes-Benz S-Class S 500 4MATIC Sedan 4D | ![]() Used 2021 BMW 8 Series | ![]() New 2026 Mercedes-Benz S-Class | ![]() Used 2021 Lexus LS | ||
|---|---|---|---|---|---|
| Price | $48,300 | $37,800 | $120,600 | $45,900 | |
| KBB.com Rating | 4.8 | 4.1 | N/A | 4.3 | |
| Consumer Rating | 3.6 | 4.8 | 3.6 | 4.5 | |
| Fuel Economy | City 20/Hwy 29/Comb 24 MPG | City 22/Hwy 29/Comb 25 MPG | City 20/Hwy 29/Comb 23 MPG | City 18/Hwy 29/Comb 22 MPG | |
| Fuel Type | Gas | N/A | Gas | N/A | |
| Seating Capacity | 5 | 5 | 5 | 5 | |
| Basic Warranty | 4 years or 50000 miles | 4 years or 50000 miles | 4 years or 50000 miles | 4 years or 50000 miles | |
| Horsepower | 429 @ 6100 RPM | 335 @ 5000 RPM | 442 @ 5800 RPM | 416 @ 6000 RPM | |
| Engine | V6, Twin Turbo, 3.0 Liter | 6-Cyl, Turbo, 3.0 Liter | 6-Cyl, MHEV, Turbo, 3.0 Liter | V6, Twin Turbo, 3.5 Liter | |
| Drivetrain | AWD | RWD | AWD | RWD |