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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 | $25,600 | $29,100 | ||
Very Good | $25,000 | $28,400 | ||
Good | $24,400 | $27,700 | ||
Fair | $22,800 | $25,900 |
Estimated Trade-In Values for the 2018 Mercedes-Benz S-Class S 450 Sedan 4D range from about $22,800 to $25,600 depending on vehicle condition. Estimated Private Party Values range from about $25,900 to $29,100 depending on vehicle condition. Valid for ZIP Code 43543 through 7/1/2026.
EPA Passenger | 112.0 cu.ft. | ||
|---|---|---|---|
Fuel Capacity | 24.6 gallons | ||
Max Seating Capacity | 5 | ||
Minimum Ground Clearance | 5.1 inches | ||
Overall Length | 206.9 inches | ||
Trunk or Cargo Capacity | 12.0 cu.ft. | ||
Turning Diameter | 40.4 feet | ||
Wheel Base | 124.6 inches | ||
Width with mirrors | 83.9 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 | ||
Privacy Glass | Available | ||
LED Headlights | Available | ||
Rear Spoiler | Available |
City | 19 mpg | ||
|---|---|---|---|
Highway | 28 mpg | ||
Combined | 22 mpg |
Drivetrain | RWD | ||
|---|---|---|---|
Transmission Type | Automatic | ||
9 speed | Available | ||
Recommended Fuel | Premium | ||
Parking Assist System | Available |
Horsepower | 362 @ 5500 RPM | ||
|---|---|---|---|
Torque | 369 @ 1600 rpm | ||
Engine | V6, Twin Turbo, 3.0 Liter | ||
0 to 60 | 5.0 seconds |
Basic | 4 years / 50000 miles | ||
|---|---|---|---|
Powertrain | 4 years / 50000 miles | ||
Corrosion | 4 years / 50000 miles |
You know you’ve arrived. If the rest of the world hasn’t caught on, they surely will when they see you in a new S-Class. This flagship Mercedes is a rolling testament to monetary success. Aside from prestige, the 2018 S-Class remains a fantastic car both to drive and to be driven in.
If the S-Class’ nearly 6-figure cost gives you pause, you might consider the all-new Lexus LS, Genesis G90, Acura RLX or Volvo S90, all of which can be had for far less. The S-Class’ archrival BMW 7 Series also begins about $10,000 less. Also all-new is the Audi A8, which promises a higher level of self-driving capability.
![]() Used 2018 Mercedes-Benz S-Class S 450 Sedan 4D | ![]() New 2026 Mercedes-Benz S-Class | ![]() Used 2018 Alfa Romeo Giulia | ![]() Used 2018 Cadillac ATS-V | ||
|---|---|---|---|---|---|
| Price | $28,700 | $120,600 | $33,600 | $30,300 | |
| KBB.com Rating | N/A | N/A | 4.1 | 4.0 | |
| Consumer Rating | 4.5 | 3.6 | 4.8 | 5.0 | |
| Fuel Economy | City 19/Hwy 28/Comb 22 MPG | City 20/Hwy 29/Comb 23 MPG | City 17/Hwy 24/Comb 20 MPG | City 17/Hwy 25/Comb 20 MPG | |
| Fuel Type | Gas | Gas | N/A | N/A | |
| Safety Rating | N/A | N/A | N/A | 4.0 | |
| 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 | 362 @ 5500 RPM | 442 @ 5800 RPM | 505 @ 6500 RPM | 464 @ 5850 RPM | |
| Engine | V6, Twin Turbo, 3.0 Liter | 6-Cyl, MHEV, Turbo, 3.0 Liter | V6, Twin Turbo, 2.9 Liter | V6, Twin Turbo, 3.6 Liter | |
| Drivetrain | RWD | AWD | RWD | RWD |