2018 Porsche 911 Cabriolet

City mpg:
Highway mpg:

Actual rating will vary with options, driving conditions, habits and vehicle condition.

2018 Porsche 911 Cabriolet Overview

The standard features of the Porsche 911 Carrera include 3.0L H-6 370hp twin turbo engine, 7-speed manual transmission with overdrive, 4-wheel anti-lock brakes (ABS), integrated navigation system, side seat mounted airbags, curtain 1st row overhead airbag, driver and passenger knee airbag, airbag occupancy sensor, automatic air conditioning, 19" forged aluminum wheels, cruise control, ABS and driveline traction control.

2018 Porsche
911 Cabriolet

Starting at: $103,400

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  • Air conditioning
  • Automatic temperature control
  • Front dual zone A/C
  • Speed control
  • Power windows
  • 1-touch down
  • 1-touch up
  • Remote keyless entry
  • Illuminated entry
  • Tilt steering wheel
  • Telescoping steering wheel
  • Driver vanity mirror
  • Passenger vanity mirror
  • Garage door transmitter - HomeLink
  • Navigation system
  • Front beverage holders
  • Overhead console
  • Driver door bin
  • Passenger door bin
  • AM/FM radio - SiriusXM
  • CD player
  • CD-MP3 decoder
  • DVD-Audio
  • Internal memory capacity (GB) - 11 GB
  • Radio data system
  • Speakers - 8
  • Wireless phone connectivity - Bluetooth
  • 1st row LCD monitors - 2
  • Primary LCD size - 7.0"
  • Diversity antenna
  • Smart device integration - Apple CarPlay
  • Basic warranty - 48 months/50,000miles
  • Powertrain warranty - 48 months/50,000miles
  • Corrosion perforation warranty - 144 months/ unlimited distance
  • Roadside assistance coverage - 48 months/50,000miles
  • Max seating capacity - 4
  • Front seats - bucket
  • Power driver seat
  • Power passenger seat
  • Front center armrest
  • Rear seats - bucket
  • Split folding rear seat
  • Leather upholstery
  • Leather shift knob
  • Leather steering wheel
  • Sport steering wheel
  • Engine displacement - 3.0 L
  • Engine horsepower - 370hp @ 6,500RPM
  • Engine torque - 331 lb.-ft. @ 1,700RPM
  • Engine bore x stroke - 91.0mm x 76.0mm (3.58" x 2.99")
  • Compression ratio - 10.00 to 1
  • Payload - 425kg (936lbs)
  • GVWR - 1,925kg (4,243lbs)
  • Exterior length - 4,498mm (177.1")
  • Exterior body width - 1,808mm (71.2")
  • Exterior height - 1,288mm (50.7")
  • Wheelbase - 2,451mm (96.5")
  • Turning radius - 5.6m (18.3')
  • Interior cargo volume - 144 L (5 cu.ft.)
  • Interior maximum cargo volume - 303 L (11 cu.ft.)
  • Power door mirrors
  • Heated door mirrors
  • Power convertible roof
  • Glass rear window
  • Convertible roof lining
  • Convertible roof wind blocker
  • Spoiler
  • Tailpipe finisher - polished
  • Door mirrors - body-color
  • Bumpers - body-color
  • Engine liters - 3.0
  • Compressor - twin turbo
  • Cylinder configuration - H-6
  • Horsepower - 370hp @ 6,500RPM
  • Torque - 331 lb.-ft. @ 1,700RPM
  • Number of valves - 24
  • Variable valve control
  • Variable intake manifold
  • Engine location - rear
  • Recommended fuel - Premium Unleaded
  • Transmission - 7 speed manual
  • Drive type - rear-wheel
  • Fuel economy combined - 23mpg
  • Fuel tank capacity - 16.9gal.
  • Fuel economy city - 20mpg
  • Fuel economy highway - 29mpg
  • 4 wheel disc brakes
  • ABS brakes
  • Brake assist
  • Dual front impact airbags
  • Passenger cancellable airbag
  • Dual front side impact airbags
  • Overhead airbag
  • Knee airbag
  • Occupant sensing airbag
  • Perimeter/approach lights
  • Ignition disable
  • Security system
  • Integrated roll-over protection
  • Electronic stability
  • Traction control
  • Adaptive suspension
  • Four wheel independent suspension
  • Front anti-roll bar
  • Rear anti-roll bar
  • Power steering
  • Speed-sensing steering
  • Alloy wheels
  • Front tires - 235/40YR19.0
  • Rear tires - 295/35YR19.0
  • Wheel size - 19"
  • Tires - performance
  • High intensity discharge headlights - Bi-Xenon
  • Fully automatic headlights
  • Delay-off headlights
  • Headlight cleaning
  • Rear fog lights
  • Variably intermittent wipers
  • Rain sensing wipers
  • Rear window defroster
  • Front reading lights
  • Display - analog
  • Tachometer
  • Outside temperature display
  • Low tire pressure warning
  • Trip computer
  • Parking sensors - front and rear
  • Exterior parking camera rear


  MSRP Engine Transmission City/Hwy mpg
Carrera 2018 Porsche 911 Cabriolet Carrera Search New $103,400   370-hp 3.0L 6-cyl  7-spd man.  20 / 29  
Carrera 4 2018 Porsche 911 Cabriolet Carrera 4 Search New $110,300   370-hp 3.0L 6-cyl  7-spd man.  19 / 28  
Carrera S 2018 Porsche 911 Cabriolet Carrera S Search New $117,400   420-hp 3.0L 6-cyl  7-spd man.  20 / 28  
Carrera 4S 2018 Porsche 911 Cabriolet Carrera 4S Search New $124,300   420-hp 3.0L 6-cyl  7-spd man.  19 / 28  
Carrera GTS 2018 Porsche 911 Cabriolet Carrera GTS Search New $133,000   450-hp 3.0L 6-cyl  7-spd man.  18 / 26  
Carrera 4 GTS 2018 Porsche 911 Cabriolet Carrera 4 GTS Search New $139,900   450-hp 3.0L 6-cyl  7-spd man.  18 / 26  
Turbo 2018 Porsche 911 Cabriolet Turbo Search New $174,100   540-hp 3.8L 6-cyl  7-spd auto with auto-shift  19 / 24  
Turbo S 2018 Porsche 911 Cabriolet Turbo S Search New $203,000   580-hp 3.8L 6-cyl  7-spd auto with auto-shift  19 / 24  


Driving Impression

New Car Test Drive

The base twin-turbocharged, 3.0-liter flat six that makes 370 horsepower also brings 331 pound-feet of torque, from 1700 rpm to 5500 rpm, an exceptional range. This flexibility makes it easy to drive around town. The Carrera S makes 420 hp and brings 368 lb-ft. There is no turbo lag, thanks to a system that keeps the turbos spinning with a small amount of pressure, no more than 2 psi.

The 580-horsepower Turbo S blasts away from a start so fast it’s scary. The steering is nicely weighted and natural, as the ratio varies with speed. It stays flat in the corners thanks to active anti-roll bars, as it reaches fantastically high lateral loads without breaking loose on its 20-inch Pirelli P Zero tires. Thank heavens for its good stability control.

The 911 offers excellent stopping ability, and the standard steel rotors provide a good feel. The optional carbon-ceramic brakes offer so much stopping power that the braking points for corners is deep beyond belief. The carbon-ceramic brakes reduce fade, also, so you can run consecutive laps without overheating them.

Another option that’s great on the track is the Sport Chrono package. For about $2000 it adds dynamic engine mounts, launch control in the PDK or rev-matching downshifts in the manual, special stability software, and driving modes that come from the 918 Spyder.

Walk Around

New Car Test Drive

For 2017, the 911 got a couple tweaks in the styling, air intakes and taillamps, but otherwise it’s been the same for well, some might say 60 years. It’s been a beautiful evolution of the upside-down-bathtub shape. The Porsche can’t hold a candle to the sensuous shapes of the British Jaguar and Aston Martin, or Italian Maserati, but it’s the most iconic.

Interior Overview

New Car Test Drive

The instrument panel in the cabin of the Carrera is classic Porsche in the way it is dominated by the tachometer. Not so classic is the modernization of the instrumentation, by a 4.6-inch multi-function display, that is bright and informative. Stretching farther from classic, there’s a standard 6.5-inch touchscreen with Apple CarPlay and navigation. Carbon-fiber and brushed aluminum can be swathed over the instrument panel for a price. Along with tons of other options.

Fit and finish are excellent.

The front seats are comfortable, supportive, and provide good legroom. The 911 is technically a 2+2, so there are rear seats, sort of, but there is zero legroom, so the space is best used for bags and parcels. We consider it a two-seater.

There is very little storage, with small door pockets and not much room in the center console bin. The trunk in front is surprisingly roomy, but still only suited for soft luggage like duffels.

It’s relatively quiet in the cabin, although the 3.8-liter engine makes more noise than the 3.0-liter.


New Car Test Drive

The Porsche 911 is a wonderful sports car. The base Carrera offers the best value. A Carrera 4 would make a luxurious high-speed commuter. A Turbo is the legendary Autobahn car. The GTS and Carrera T are the sportiest. Track day cars don’t get better than a GT3.

Sam Moses contributed to this report, with Mitch McCullough reporting from New Jersey.

Model Lineup

New Car Test Drive

The Porsche 911 Carrera ($91,100) is the base model, the traditional model, a coupe with rear-wheel drive. A convertible top is available for most variants, starting with the Carrera Cabriolet ($103,400). The 911 Targa 4 ($110,300) features the Targa top. Carrera 4 ($98,000) includes all-wheel drive. Upmarket is the 911 Turbo ($161,800). Sportiest is the Carrera GTS ($120,700). The hot track cars are the GT3 ($143,600), GT3 RS ($187,500), and GT2 RS ($293,200).

Standard features in the Carrera include a rearview camera, power seats, eight-speaker sound system, and Alcantara headliner.

Options go on forever, from heated seats to LED headlamps to leather-wrapped seatbelt buckles. If you want your key fob painted the same color as your car, you can get that goodie for $530. There’s an option that raises the front axle to keep the nose of your Porsche from scraping driveways, not a bad idea, if you can remember to use it ($3490). If you want the most for track days, there are carbon-ceramic brakes ($9210).

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