Porsche 911 vs Dodge Viper Compare price, expert/user reviews, mpg, engines, safety, cargo capacity and other specs at a glance.

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Used Car Pricing Used listing price comparison and analysis.

2020 Porsche 911
Carrera 4S Cabriolet AWD
CarGurus Instant Market Value
$158,835
1 listings nationwide

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2017 Dodge Viper
ACR RWD
CarGurus Instant Market Value
$118,795
1 vehicle

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Expert Reviews Reviews from CarGurus experts.

2020 Porsche 911
Carrera 4S Cabriolet AWD
Andrew Newton Preview:

The highly anticipated eighth-generation version of the Porsche 911, known as the 992, debuts for 2020. The 911, available as a coupe or a cabriolet, comes in rear-wheel drive (RWD) Ca...

2017 Dodge Viper
ACR RWD
George Kennedy Preview:

The modern supercar landscape is a space dominated by exotic materials, efficient yet powerful hybrid powertrains, and advanced traction management that can make any driver a hero. But...

User Reviews Reviews from CarGurus users who have driven or owned the car.

2020 Porsche 911
Carrera 4S Cabriolet AWD
writes:
Back Seats Ranked 2018 Nissan GT-R Premium AWD better.
"Price for performance "
Family Car Ranked 2018 Nissan GT-R Premium AWD better.
"Cost "
2017 Dodge Viper
ACR RWD
10
writes:
it looks cool as crap
writes:
Would not have if you gave it to me for free!
5
writes:
Power Ranked 2018 Acura NSX SH-AWD better.
"The Viper is heavy, ponderous, it takes a short while for momentum to build. The NSX is light and the electric motors get it moving immediately and quickly. I love how the turbos, small gas engine, relatively small batteries and electric motors all combine seamlessly to for a flawless acceleration and handling experience. The NSX is everything I want it to be."

Specs

2020 Porsche 911
Carrera 4S Cabriolet AWD
2017 Dodge Viper
ACR RWD
Powertrain 8-Speed Dual Clutch 6-Speed Manual
Drivetrain
AWD
RWD
Fuel Economy, City
--
12 MPG
Fuel Economy, Highway
--
19 MPG
Fuel Tank Volume 17.6 gal 16 gal
Engine
Fuel Type
Gasoline
Gasoline
Power
443 hp @ 6,500 RPM
645 hp @ 6,150 RPM
Torque
390 lb-ft @ 2,300 RPM
600 lb-ft @ 4,950 RPM
Cylinders
6 cylinders
10 cylinders
Compression Ratio
10.2:1
10.2:1
Displacement
3,000 cc
8,400 cc
Bore x Stroke
3.58 in x 3.01 in
4.05 in x 3.96 in
Safety
ABS Brakes Standard Standard
Driver Airbag Standard Standard
Passenger Airbag Standard Standard
Front Side Airbags -- Standard
Curtain Airbags Standard --
NHTSA Crash Test Results
Comfort and Convenience
Leather Seats -- Standard
Air Conditioning Standard Standard
CD Player Standard --
Radio Standard Standard
Power Windows Standard Standard
Power Door Locks Standard Standard
Driver Power Seats Standard --
Passenger Power Seats Standard --
Interior
Maximum Seating 4 seats 2 seats
Front Legroom -- 42.7 in
Back Legroom -- --
Payload and Towing
Cargo Volume 4.6 cu ft 14.7 cu ft
Maximum Payload 912 lbs --
Exterior
Length 177.9 in 175.7 in
Width 79.7 in 76.4 in
Height 51.2 in 49.1 in
Wheelbase 96.5 in 98.8 in

Available Options

2020 Porsche 911
Carrera 4S Cabriolet AWD

Exterior Colors

  • Agate Grey Metallic
  • Aventurine Green Metallic
  • Black
  • Carmine Red
  • Carrara White Metallic
  • Chalk
  • Custom Color
  • Dolomite Silver Metallic
  • GT Silver Metallic
  • Gentian Blue Metallic
  • Guards Red
  • Jet Black Metallic
  • Lava Orange
  • Lizard Green
  • Miami Blue
  • Night Blue Metallic
  • Racing Yellow
  • White

Option Packages

  • Bose Surround Sound System
  • Porsche Active Suspension Management (PASM)
  • Illuminated Door-Sill Guards in Brushed Aluminum
  • Illuminated Door-Sill Guards in Carbon Fiber
  • SportDesign Side Skirts
  • Seat Belts in Bordeaux Red
  • Seat Belts in Chalk
  • Interior Trim in Carbon Fiber
  • Adaptive Cruise Control (Acc)
  • BURMESTER High-End Surround Sound-System
  • Brake Calipers In High Gloss Black
  • Comfort Access
  • Front & Rear PARKASSIST W/Surround View
  • Front Axle Lift System
  • Heated Multifunction GT Sport Steering Wheel
  • ILLUM. Personalized Door-Sill Guards In Carbon Fiber
  • Illuminated Personalized Door-Sill Guards
  • Interior Trim In Brushed Aluminum
  • Interior Trim In Leather
  • Interior Trim In Light Silver DIAMAR
  • Interior Trim In PALDAO
  • Interior Trim Painted In Exterior Color
  • Lane Change Assist (LCA)
  • Lane Keep Assist (LKA) W/Traffic Sign Recognition
  • Led-Matrix Headlights
  • Light Design Package
  • Multifunction GT Sport Steering Wheel In Alcantara
  • Night Vision Assist
  • Porsche Ceramic Composite Brakes (PCCB)
  • Porsche Ceramic Composite Brakes (PCCB) In Black
  • Porsche Dynamic Chassis Control (PDCC)
  • Porsche Dynamic Light System Plus (PDLS+)
  • Premium Package
  • Protection Film - Front
  • Rear Axle Steering
  • Seat Belts In Agave Green
  • Seat Belts In Guards Red
  • Seat Belts In Lizard Green
  • Seat Belts In Racing Yellow
  • Seat Belts In Silver Grey
  • Seat Belts In Truffle Brown
  • Seat Ventilation
  • Sport CHRONO Package
  • Sport Exhaust System W/Tailpipes In Black
  • Sport Exhaust System W/Tailpipes In Silver
  • Sport Package
  • Sportdesign Front Fascia
  • Sportdesign Package
  • Vehicle Key In Leather W/Key Pouch
  • Vehicle Key Painted W/Key Pouch In Alcantara
  • Vehicle Keys Painted W/1 Key Pouch In Leather
  • Wheels Painted In Exterior Color
  • Wheels Painted In High Gloss Black
  • Wheels Painted In Jet Black Metallic
  • Wheels Painted In Satin Aurum
  • Wheels Painted In Satin Black
  • Wheels Painted In Satin Platinum
  • Agave Green, Club Leather Seat Trim
  • Agave Green, Club Leather Seat Trim W/Chalk Stitching
  • Black, LTHR Seat Trim W/Leather Interior & Chalk Stitching
  • Black, LTHR Seat Trim W/Sport-Tex Centers & Chalk Stitching
  • Black, Leather Seat Trim W/Leather Interior
  • Black, Leather Seat Trim W/Sport-Tex Centers
  • Bordeaux Red, LTHR Seat Trim W/Leather Interior & Chalk Stitching
  • Bordeaux Red, Leather Seat Trim W/Leather Interior
  • Bordeaux Red/Black, Leather Seat Trim W/Two-Tone Leather Interior
  • Chalk/Slate Grey, Leather Seat Trim W/Two-Tone Leather Interior
  • Graphite Blue, LTHR Seat Trim W/Leather Interior & Chalk Stitching
  • Graphite Blue, Leather Seat Trim W/Leather Interior
  • Island Green/Black, Leather Seat Trim W/Two-Tone Leather Interior
  • Mojave Beige/Black, Leather Seat Trim W/Two-Tone Leather Interior
  • Slate Grey, LTHR Seat Trim W/Leather Interior & Chalk Stitching
  • Slate Grey, Leather Seat Trim W/Leather Interior
  • Truffle Brown, Club Leather Seat Trim
  • Truffle Brown, Club Leather Seat Trim W/Chalk Stitching
  • 14-Way Power Sport Seats W/Memory Package
  • 18-Way Adaptive Sport Seats Plus W/Memory Package
  • HTD Multifunction GT Sport Steering WHL In Alcantara
  • Wheels: 20" Front/21" Rear CARRERA Classic
  • Wheels: 20" Front/21" Rear CARRERA Exclusive Design
  • Wheels: 20" Front/21" Rear RS SPYDER Design
2017 Dodge Viper
ACR RWD

Exterior Colors

  • Adrenaline Red
  • Billet Silver Metallic Clearcoat
  • Competition Blue
  • GTS-R Blue Pearlcoat
  • Gunmetal Pearl
  • Stryker Orange Tri-Coat Pearl
  • Venom Black Clearcoat
  • Viper White Clearcoat
  • Yorange Clearcoat

Option Packages

  • Carbon Fiber Structural X-Brace
  • Exterior Carbon Fiber Package
  • Carbon Fiber Black Interior Accents
  • Extreme Aero Package
  • ACR Car Cover
  • ACR Extreme Car Cover
  • Adrenaline Red GTS Racing Stripes
  • Billet Silver GTS Racing Stripes
  • Black GTS Racing Stripes
  • Bright White GTS Racing Stripes
  • Center Band Paint Stripe
  • Driver Paint Stripe - Black
  • Driver Paint Stripe - Red
  • Gunmetal GTS Racing Stripes
  • Wheels: 19" x 11" FR/19" x 13" RR ACR Brass Monkey

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