GO

Car Comparison

Use this tool to compare car rankings, scores, prices and specs for your top picks. You can compare SUVs, cars or trucks and you can compare new cars and used cars. Then use our Best Price Program to get a great deal on new cars or search our huge collection of used car listings.

Standard Standard
Optional Optional
X Remove X Remove X Remove
2014 Porsche Panamera 2014 Mercedes-Benz S-Class 2014 Tesla Model S
4dr HB
  • 4dr HB GTS
  • 4dr HB 4S Executive
  • 4dr HB Turbo
  • 4dr HB Turbo Executive
  • 4dr HB Turbo S
  • 4dr HB Turbo S Executive
  • 4dr HB
  • 4dr HB 4
  • 4dr HB S
  • 4dr HB 4S
  • 4dr HB S e-Hybrid
S550 Sedan
  • S63 AMG 4MATIC Sedan
  • S550 Sedan
  • S550 4MATIC Sedan
4dr Sdn
  • 4dr Sdn
  • 4dr Sdn Performance

Prices

MSRP $78,100 $92,900 $69,900
Invoice $0 $86,397 $0
Avg. Paid $75,726 $86,402 N/A

U.S. News Scores

Overall 8.8 9.4 9.3
Critics' Rating 8.8 9.6 9.5
Performance 8.8 9.2 8.7
Interior 8.5 9.2 7.9
Safety N/A N/A 10.0
Reliability 4.0 4.0 N/A

Pros & Cons

Pros
  • Potent acceleration with any engine
  • Athletic handling
  • First-rate interior materials
  • First-class interior quality and accommodations
  • Powerful, smooth engine choices
  • Sublime ride quality
  • Responsive and powerful electric motor
  • Large, user-friendly touch-screen display
  • Ample cargo space
Cons
  • Button-heavy center stack
  • Limited rear-seat headroom
  • Less engaging to drive than rivals
  • Limited second-row headroom

General Specs

Transmission Automatic Automatic Automatic
Drivetrain Rear Wheel Drive Rear Wheel Drive Rear Wheel Drive
Fuel/Engine Premium Unleaded V-6 3.6 L/220 Twin Turbo Premium Unleaded V-8 4.7 L/285 Electric
MPG 18 City / 28 Hwy 17 City / 25 Hwy N/A

Exterior

Body

Body Style Hatchback Sedan Sedan

Dimensions

Wheelbase(in) 115 124.6 116.5
Length, Overall (in) 197.4 206.5 195.9
Width, Max w/o mirrors (in) 76 74.8 77.3
Height, Overall (in) 55.8 58.8 56.5

Doors & Windows

Rear Defrost Standard Standard Standard
Power Windows Standard Standard Standard

Exterior Features

Dual Moonroof Standard Optional
Sun/Moon Roof Standard Standard Optional
Power Tilt/Sliding Sunroof Standard Standard Optional
Rear Spoiler Standard Standard

Measurements

Base Curb Weight (lbs) 3902 4729 4647

Tires & Wheels

Tires - Front All-Season Optional
Tires - Front Performance Standard Standard Standard
Tires - Rear All-Season Optional
Tires - Rear Performance Standard Standard Standard
Tire Pressure Monitoring System Standard Standard Standard
Aluminum Wheels Standard Standard Standard
Wheel Locks Standard Optional Optional

Interior

Convenience & Comfort

Alarm Standard Standard Standard
Back-Up Camera Optional Standard Standard
Cruise Control Standard Standard Standard
Vehicle Anti-Theft System Standard Standard Standard
Fog Lamps Optional
Auto-Off Headlights Standard Standard Standard
HID headlights Standard Standard
Interior Cargo Shade Standard Optional
Keyless Start Standard
Luggage Rack Optional Optional
Rear Parking Aid Standard Optional
Power Liftgate Standard Optional
Remote Engine Start Standard
Adjustable Steering Wheel Standard Standard Standard
Steering Wheel Controls Standard Standard Standard
Leather Wrapped Steering Wheel Standard Standard
Trip Computer Standard Standard Standard
Remote Trunk Release Standard Standard Standard
Universal Garage Door Opener Standard Standard Optional
Intermittent Wipers Standard Standard Standard
Rain Sensing Wipers Standard Standard Standard
Variable Speed Intermittent Wipers Standard Standard Standard
Front Floor Mats Standard Standard Standard
Keyless Entry Standard Standard Standard
Power Door Locks Standard Standard Standard
Electrochromic rearview mirror Standard Standard
Heated Mirrors Standard Standard Standard
Mirror Memory Standard Standard Optional
Power Driver Mirror Standard Standard Standard
Power Folding Mirrors Standard Standard Optional
Driver Vanity Mirror Standard Standard Standard
Driver Illuminated Vanity Mirror Standard Standard Standard
Passenger Vanity Mirror Standard Standard Standard
Passenger Illuminated Visor Mirror Standard Standard Standard
Power Steering Standard Standard Standard

Dimensions

Passenger Capacity 4 5 5
Passenger Volume (cu. ft.) 94
Front Head Room (in) 38 39.7 38.8
Front Leg Room (in) 41.9 41.4 42.7
Front Shoulder Room (in) 51.9 59.7 57.7
Front Hip Room (in) 55
Second Head Room (in) 38.2 39.2 35.3
Second Leg Room (in) 33.3 43 35.4
Second Shoulder Room (in) 51.7 59.1 55
Second Hip Room (in) 54.7
Cargo Volume with Rear Seat Down (cu. ft.) 44.6

Entertainment

AM/FM Stereo Standard Standard Standard
Auxiliary Audio Input Standard Standard Standard
CD Changer Optional Standard
CD Player Standard Standard
HD Radio Optional Standard Standard
MP3 Player Standard Standard Standard
Satellite Radio Optional Standard Optional
Premium Sound System Optional Standard
Entertainment System Optional Optional
Hard Disk Drive Standard Standard

Heating & Cooling

Climate Control Standard Standard Standard
Dual Zone A/C Standard Standard Standard
A/C Standard Standard Standard
Rear A/C Optional Optional Standard

Navigation & Communication

Navigation System Standard Standard Optional
Onboard Hands-Free Communications System Standard
Wireless Cell Phone Hookup Standard Standard Standard

Seats

Cloth Seats Standard
Leather Seats Standard Standard Optional
Premium Synthetic Seats Standard
Additional Rear Seat Optional
Cooled Driver Seat Optional
Cooled Rear Seat Optional Optional
Heated Driver Seat Standard Standard Optional
Heated Rear Seat Optional Optional Optional
Driver Lumbar Optional Standard Optional
Passenger Lumbar Optional Standard Optional
Seat Memory Standard Standard Optional
Power Driver Seat Standard Standard Standard
Power Passenger Seat Standard Standard Standard
Pass-Through Rear Seat Standard Standard
2nd Row Bench Seat Standard Standard
Bucket Seats Standard Standard Standard
Quad Bucket Seats Standard Optional

Safety

Airbags

Driver Air Bag Standard Standard Standard
Passenger Air Bag Standard Standard Standard
Side Head Air Bag Standard Standard Standard
Rear Head Air Bag Standard Standard Standard
Side Air Bag Standard Standard Standard
Rear Body Air Bag Standard Standard

Brakes

4-Wheel ABS Standard Standard Standard
4-Wheel Disc Brakes Standard Standard Standard

Safety Features

Brake Assist Standard Standard
Electronic Stability Control Standard Standard Standard
Daytime Running Lights Standard Standard Standard
Child Safety Locks Standard Standard Standard
Integrated Turn Signal Mirrors Standard
Night Vision Optional
Traction Control Standard Standard Standard
Blind Spot Monitor Optional Optional
Auto-Leveling Headlights Standard Standard
Lane Departure Warning Optional Optional

Mechanical

Engine & Performance

Locking Rear Differential Optional
Rear Wheel Drive Standard Standard Standard
V6 Cylinder Engine Standard
8 Cylinder Engine Standard
Electric Motor Standard
Turbocharged Standard
Engine Type Premium Unleaded V-6 Twin Turbo Premium Unleaded V-8 Electric
Displacement 3.6 L/220 4.7 L/285
Horsepower (Net @ RPM) 310 @ 6200 449 @ 5250 302 @ 5000
Torque (Net @ RPM) 295 @ 3750 516 @ 1800 317
Transmission Auto-Shift Manual w/OD Automatic w/OD Automatic
Turning diameter 39.3 40 37

Fuel

Electric Fuel System Standard
Gasoline Fuel Standard Standard
EPA Fuel Economy Est - City (MPG) 18 17
EPA Fuel Economy Est - Hwy (MPG) 28 25
Fuel Tank Capacity, Approx (gal) 21.1 21.1

Suspension

Active Suspension System Optional Standard Optional
Air Suspension Optional Standard Optional
Suspension Type - Front Double Wishbone Multi-Link Double Wishbone
Suspension Type - Rear Multi-Link Multi-Link Multi-Link
Suspension Type - Front (Cont.) Double Wishbone Multi-Link Double Wishbone
Suspension Type - Rear (Cont.) Multi-Link Multi-Link Multi-Link

Transmission

Automatic Standard Standard Standard
Automatic Transmission w/Manual Mode Standard Standard
1-Speed Automatic Standard
7-Speed Automatic Standard Standard