2015 Porsche 911 Carrera 4S Cabriolet (991) Technical Specifications
| Engine Type | Flat 6 |
| Induction | Normally-aspirated |
| Cooling | Water-cooled |
| Valvetrain | Four overhead camshafts, four valves per cylinder |
| Injection | Direct Injection. Variable Intake. |
| Bore X Stroke | 4.02 in/102 mm x 3.03 in/77.5 mm |
| Displacement | 231.9 cu-in/3,800cc |
| Horsepower | 395 bhp @ 7400 rpm |
| Torque | 325 ft lbs @ 5600 rpm |
| Max Rpm | 7800 |
| Compression Ratio | 12.5:1 |
| Transmission Options | 7-speed manual, 7-speed PDK |
| Chassis Type | Rear-engined, all-wheel drive |
| Curb Weight | 3,340 lbs. manual/3,384 lbs. PDK |
| Height | 51.3 in / 1303 mm |
| Ground Clearance | 4.3 in / 109 mm |
| Length | 176.8 in / 4491 mm |
| Wheelbase | 96.5 in / 2451 mm |
| Width | 72.91 in / 1852 mm |
| Track Front | 60.3 in / 1,532 mm |
| Track Rear | 61.42 in / 1,560 mm |
| Drag Coefficient | 0.30 |
| Wheel Size Front | 20 x 8.5 |
| Wheel Size Rear | 20 x 11 |
| Tire Size Front | 245/35ZR20 |
| Tire Size Rear | 305/30ZR20 |
| Brake Caliper Front | Fixed 6-piston |
| Brake Caliper Rear | Fixed 4-piston |
| Disc Type Front | Ventilated, cross-drilled discs |
| Disc Type Rear | Ventilated, cross-drilled discs |
| Disc Size Front | 13.38 in/340 mm x 1.3 in/33 mm |
| Disc Size Rear | 12.99 in/330 mm x 1.1 in/28 mm |
| 0 To 60 Mph | 4.7 sec manual /4.5 sec PDK / 4.3 sec PDK SC |
| Top Speed | 185 mph manual / 184 mph PDK |
| Mpg City | 18 mpg US manual / 19 mpg US PDK |
| Mpg Highway | 26 mpg US manual / 26 mpg US PDK |
| Mpg Combined | 21 mpg US manual / 21 mpg US PDK |
| Fuel tank capacity | 18 gal. |
| Required Octane | Premium unleaded (91+) |
PDK = Porsche Doppelkupplung (Dual Clutch Transmission)
SC = Sport Chrono
