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Porsche 911 Carrera 4 Cabriolet (991.2) (2018) – Specifications & Performance

2018 Porsche 911 Carrera 4 Cabriolet (991.2) Technical Specifications

Engine layout Rear Engine
Engine type Boxer, twin-turbo
Cylinders 6
Valves per cylinder 4
Construction Aluminum crankcase and heads
Fuel injection Direct Fuel Injection (DFI)
Fuel Premium
Displacement (Liters) 3.01
Bore/Stroke (mm/mm) 91.0 mm / 76.0 mm
Maximum power output @ engine speed 370 hp @ 6500 rpm
Maximum torque @ engine speed 331 lb.-ft. @ 1700-5000 rpm
Maximum engine speed 7500
Compression ratio 10.0 1
Output per liter 124.1 hp
Lubrication Integrated drv-sump
Electrical System 12 V, 2450 W alternator; battery capacity 95 Ah
Power to weight ratio (lb/hp) 8.9 (manual) / 9.1 (PDK)
Drivetrain Active all-wheel drive
Chassis & Suspension
Body Monocoque lightweight body in a combination of steel, aluminum and magnesium
Front Axle MacPherson strut with anti-roll bar
Rear Axle Aluminum multi-link with anti-roll bar
Steering System Variable ratio electromec. power steering
Steering Ratio 16.6 : 1 (on-center) to 12.5 : 1
Steering Ratio with rear-axle steering not available
Turning Circle 36.7 ft
Brakes & Wheels
Caliper type Aluminum monobloc fixed-caliper brake
Rotor material Steel
Caliper color Black
Number of pistons (front/rear) 4 / 4
Rotor diameter (front/rear) mm 330 mm / 330 mm
Rotor thickness (front/rear) mm 34 mm / 28 mm
Name and option # 19″ Carrera
Number of gears 7
Transmission type 7-speed manual / 7-speed PDK
Ratios
1st 3.91 / 3.91
2nd 2.29 / 2.29
3rd 1.58 / 1.58
4th 1.18 / 1.18
5th 0.94 / 0.94
6th 0.79 / 0.79
7th 0.62 / 0.62
Reverse 3.55 / 3.55
Final drive ratio front axle 3.46 / 3.46
Total Rear Axle Ratio 3.09 / 3.09
Clutch/Converter diameter (inches) 9.4 inches (man.) / 8.0 / 6.0 inches (PDK)
Dimensions, Aerodynamics, & Weight
Length (inches/mm) 177.1 in. / 4499 mm
Wheelbase (inches/mm) 96.5 in. / 2450 mm
Width w/ mirrors (inches/mm) 77.9 in. / 1978 mm
Width w/o mirrors (inches/mm) 72.9 in. / 1852 mm
Height 50.7 in. / 1289 mm
Track width front (inches/mm) 60.7 in. / 1541 mm
Track width rear (inches/mm) 61.3 in. / 1558 mm
Drag coefficient (Cd) 0.3
Legroom (inches) TBD
Headroom (inches) TBD
Cargo area volume (cu.-ft.) front trunk 125 l / 4.41 cu.-ft.
Cargo area volume (cu.-ft.) rear seats 260 l / 9.18 cu.-ft.
Fuel tank capacity – refill volume (gal) 17.9 gal.
Curb weight (lbs) 3417 lbs. (man.) / 3461 lbs. (PDK)
Gross Vehicle Weight (lbs) 4354 lbs. (man.) / 4387 lbs. (PDK)
Payload range (lbs) 937 lbs. (man.) / 926 lbs. (PDK)
Performance
Top track speed manual (mph) 179 mph
Top track speed PDK (mph) 178 mph
Acceleration 0-60 manual (sec) 4.5 sec.
Acceleration 0-60 PDK (sec) 4.3 sec.
Acceleration 0-60 PDK with Launch Control (sec) 4.1 sec.
Quarter mile time manual (sec) N/A
Quarter mile time PDK (sec) N/A
Quarter mile time PDK with Launch Control (sec) N/A
Fuel Economy/Rating
City 19 mpg (manual) /21 mpg (PDK)
Highway 28 mpg (manual) / 28 mpg (PDK)
Combined 22 mpg (manual) / 24 mpg (PDK)