The 2018 Porsche 911 is associated with 2 official NHTSA owner defect complaints and 2 safety recall campaigns in the federal safety database. The most frequently reported component area is Back Over Prevention / Camera, accounting for 1 reports (50% of total complaints). EPA testing covers 51 certified vehicle configurations spanning 3l 6-cyl, 3.8l 6-cyl, 4l 8-cyl, 4L 8-Cyl plug-in hybrid, 3.6l 6-cyl, 4l 6-cyl, and 4.8l 8-cyl configurations. Gasoline and hybrid variants deliver 16 to 25 MPG combined. Plug-in hybrid variants are rated up to 49 MPGe (21 MPG on gasoline) with up to 14 miles of electric driving range. Detailed NHTSA crash-test ratings are not available in the current AutoUtility dataset for this model year. The 2018 Porsche 911 belongs to the 7th generation (991) 911 platform spanning model years 2015–2019.
Key Data Findings
- • NHTSA Owner Complaints: 2 reports
- • Safety Recall Campaigns: 2 campaigns
- • Top Reported Defect Area: Back Over Prevention / Camera (1 / 50%)
- • NHTSA Overall Safety Rating: Not rated by NHTSA
- • EPA Efficiency: 16–25 MPG (51 variants • PHEV up to 49 MPGe)
Data Note: Compiled directly from official NHTSA Office of Defects Investigation (ODI), NHTSA 5-Star Safety Ratings, and EPA FuelEconomy.gov databases.
| Variant | Engine | Drivetrain | Transmission | City | Highway | Combined | EV Range | Est. Annual Fuel Cost |
| 911 Carrera | 3L 6-Cyl | Rear-Wheel Drive | Automatic (AM-S7) | 22 MPG | 30 MPG | 25 MPG | — | $3,050 / yr |
| 911 Carrera Cabriolet | 3L 6-Cyl | Rear-Wheel Drive | Automatic (AM-S7) | 22 MPG | 28 MPG | 24 MPG | — | $3,150 / yr |
| 911 Carrera S | 3L 6-Cyl | Rear-Wheel Drive | Automatic (AM-S7) | 22 MPG | 28 MPG | 24 MPG | — | $3,150 / yr |
| 911 Carrera S Cabriolet | 3L 6-Cyl | Rear-Wheel Drive | Automatic (AM-S7) | 22 MPG | 28 MPG | 24 MPG | — | $3,150 / yr |
| 911 Carrera 4 | 3L 6-Cyl | 4-Wheel Drive | Automatic (AM-S7) | 22 MPG | 28 MPG | 24 MPG | — | $3,150 / yr |
| 911 Carrera 4 Cabriolet | 3L 6-Cyl | 4-Wheel Drive | Automatic (AM-S7) | 21 MPG | 28 MPG | 24 MPG | — | $3,150 / yr |
| 911 Carrera 4S | 3L 6-Cyl | 4-Wheel Drive | Automatic (AM-S7) | 21 MPG | 28 MPG | 24 MPG | — | $3,150 / yr |
| 911 Carrera 4S Cabriolet | 3L 6-Cyl | 4-Wheel Drive | Automatic (AM-S7) | 21 MPG | 28 MPG | 24 MPG | — | $3,150 / yr |
| 911 Targa 4 | 3L 6-Cyl | 4-Wheel Drive | Automatic (AM-S7) | 22 MPG | 28 MPG | 24 MPG | — | $3,150 / yr |
| 911 Targa 4S | 3L 6-Cyl | 4-Wheel Drive | Automatic (AM-S7) | 21 MPG | 27 MPG | 24 MPG | — | $3,150 / yr |
| 911 Carrera | 3L 6-Cyl | Rear-Wheel Drive | Manual 7-spd | 20 MPG | 29 MPG | 23 MPG | — | $3,300 / yr |
| 911 Carrera Cabriolet | 3L 6-Cyl | Rear-Wheel Drive | Manual 7-spd | 20 MPG | 29 MPG | 23 MPG | — | $3,300 / yr |
| 911 Carrera S | 3L 6-Cyl | Rear-Wheel Drive | Manual 7-spd | 20 MPG | 29 MPG | 23 MPG | — | $3,300 / yr |
| 911 Carrera S Cabriolet | 3L 6-Cyl | Rear-Wheel Drive | Manual 7-spd | 20 MPG | 28 MPG | 23 MPG | — | $3,300 / yr |
| 911 Carrera 4 | 3L 6-Cyl | 4-Wheel Drive | Manual 7-spd | 20 MPG | 28 MPG | 23 MPG | — | $3,300 / yr |
| 911 Carrera 4S | 3L 6-Cyl | 4-Wheel Drive | Manual 7-spd | 20 MPG | 28 MPG | 23 MPG | — | $3,300 / yr |
| 911 Carrera GTS | 3L 6-Cyl | Rear-Wheel Drive | Automatic (AM-S7) | 20 MPG | 26 MPG | 23 MPG | — | $3,300 / yr |
| 911 Targa 4S | 3L 6-Cyl | 4-Wheel Drive | Manual 7-spd | 19 MPG | 28 MPG | 22 MPG | — | $3,450 / yr |
| 911 Carrera GTS Cabriolet | 3L 6-Cyl | Rear-Wheel Drive | Automatic (AM-S7) | 20 MPG | 26 MPG | 22 MPG | — | $3,450 / yr |
| 911 Carrera 4 GTS | 3L 6-Cyl | 4-Wheel Drive | Automatic (AM-S7) | 20 MPG | 26 MPG | 22 MPG | — | $3,450 / yr |
| 911 Carrera 4 GTS Cabriolet | 3L 6-Cyl | 4-Wheel Drive | Automatic (AM-S7) | 20 MPG | 25 MPG | 22 MPG | — | $3,450 / yr |
| 911 Carrera 4 Cabriolet | 3L 6-Cyl | 4-Wheel Drive | Manual 7-spd | 19 MPG | 28 MPG | 22 MPG | — | $3,450 / yr |
| 911 Carrera 4S Cabriolet | 3L 6-Cyl | 4-Wheel Drive | Manual 7-spd | 19 MPG | 28 MPG | 22 MPG | — | $3,450 / yr |
| 911 Targa 4 | 3L 6-Cyl | 4-Wheel Drive | Manual 7-spd | 19 MPG | 28 MPG | 22 MPG | — | $3,450 / yr |
| 911 Targa 4 GTS | 3L 6-Cyl | 4-Wheel Drive | Automatic (AM-S7) | 20 MPG | 26 MPG | 22 MPG | — | $3,450 / yr |
| 911 Carrera T | 3L 6-Cyl | Rear-Wheel Drive | Automatic (AM-S7) | 20 MPG | 26 MPG | 22 MPG | — | $3,450 / yr |
| 911 Carrera GTS | 3L 6-Cyl | Rear-Wheel Drive | Manual 7-spd | 18 MPG | 26 MPG | 21 MPG | — | $3,600 / yr |
| 911 Carrera GTS Cabriolet | 3L 6-Cyl | Rear-Wheel Drive | Manual 7-spd | 18 MPG | 26 MPG | 21 MPG | — | $3,600 / yr |
| 911 Carrera 4 GTS | 3L 6-Cyl | 4-Wheel Drive | Manual 7-spd | 18 MPG | 26 MPG | 21 MPG | — | $3,600 / yr |
| 911 Carrera 4 GTS Cabriolet | 3L 6-Cyl | 4-Wheel Drive | Manual 7-spd | 18 MPG | 26 MPG | 21 MPG | — | $3,600 / yr |
| 911 Targa 4 GTS | 3L 6-Cyl | 4-Wheel Drive | Manual 7-spd | 18 MPG | 26 MPG | 21 MPG | — | $3,600 / yr |
| 911 Turbo | 3.8L 6-Cyl | All-Wheel Drive | Automatic (AM-S7) | 19 MPG | 24 MPG | 21 MPG | — | $3,600 / yr |
| 911 Turbo Cabriolet | 3.8L 6-Cyl | All-Wheel Drive | Automatic (AM-S7) | 19 MPG | 24 MPG | 21 MPG | — | $3,600 / yr |
| 911 Turbo S | 3.8L 6-Cyl | All-Wheel Drive | Automatic (AM-S7) | 19 MPG | 24 MPG | 21 MPG | — | $3,600 / yr |
| 911 Turbo S Cabriolet | 3.8L 6-Cyl | All-Wheel Drive | Automatic (AM-S7) | 19 MPG | 24 MPG | 21 MPG | — | $3,600 / yr |
| Panamera Turbo | 4L 8-Cyl | All-Wheel Drive | Automatic (AM-S8) | 18 MPG | 25 MPG | 21 MPG | — | $3,600 / yr |
| Panamera Turbo Executive | 4L 8-Cyl | All-Wheel Drive | Automatic (AM-S8) | 18 MPG | 25 MPG | 21 MPG | — | $3,600 / yr |
| Panamera Turbo S e-Hybrid Plug-in Hybrid | 4L 8-Cyl | All-Wheel Drive | Automatic (AM-S8) | 48 MPGe (19 MPG) | 51 MPGe (23 MPG) | 49 MPGe (21 MPG) | 14 mi EV (450 mi total) | $3,600 / yr |
| Panamera Turbo S e-Hybrid Executive Plug-in Hybrid | 4L 8-Cyl | All-Wheel Drive | Automatic (AM-S8) | 48 MPGe (19 MPG) | 51 MPGe (23 MPG) | 49 MPGe (21 MPG) | 14 mi EV (450 mi total) | $3,600 / yr |
| Panamera Turbo S e-Hybrid ST Plug-in Hybrid | 4L 8-Cyl | All-Wheel Drive | Automatic (AM-S8) | 48 MPGe (19 MPG) | 51 MPGe (23 MPG) | 49 MPGe (21 MPG) | 14 mi EV (450 mi total) | $3,600 / yr |
| Panamera Turbo ST | 4L 8-Cyl | All-Wheel Drive | Automatic (AM-S8) | 18 MPG | 23 MPG | 20 MPG | — | $3,800 / yr |
| 911 Turbo S Exclusive | 3.8L 6-Cyl | All-Wheel Drive | Automatic (AM-S7) | 17 MPG | 23 MPG | 19 MPG | — | $4,000 / yr |
| Macan Turbo | 3.6L 6-Cyl | All-Wheel Drive | Automatic (AM-S7) | 17 MPG | 23 MPG | 19 MPG | — | $4,000 / yr |
| 911 Carrera T | 3L 6-Cyl | Rear-Wheel Drive | Manual 7-spd | 16 MPG | 25 MPG | 19 MPG | — | $4,000 / yr |
| Macan Turbo Kit | 3.6L 6-Cyl | All-Wheel Drive | Automatic (AM-S7) | 17 MPG | 23 MPG | 19 MPG | — | $4,000 / yr |
| 911 GT3 | 4L 6-Cyl | Rear-Wheel Drive | Automatic (AM-S7) | 15 MPG | 20 MPG | 17 MPG | — | $4,450 / yr |
| Cayenne Turbo | 4.8L 8-Cyl | All-Wheel Drive | Automatic (S8) | 14 MPG | 21 MPG | 17 MPG | — | $4,450 / yr |
| Cayenne Turbo S | 4.8L 8-Cyl | All-Wheel Drive | Automatic (S8) | 14 MPG | 21 MPG | 17 MPG | — | $4,450 / yr |
| 911 GT2 RS | 3.8L 6-Cyl | Rear-Wheel Drive | Automatic (AM-S7) | 15 MPG | 21 MPG | 17 MPG | — | $4,450 / yr |
| 911 GT3 Touring | 4L 6-Cyl | Rear-Wheel Drive | Manual 6-spd | 14 MPG | 21 MPG | 17 MPG | — | $4,450 / yr |
| 911 GT3 | 4L 6-Cyl | Rear-Wheel Drive | Manual 6-spd | 13 MPG | 21 MPG | 16 MPG | — | $4,750 / yr |
Data Boundary Note: EPA specifications are shown by certified vehicle configuration. NHTSA complaints and recall totals are recorded at the model-year level across all configurations.
Electric Range & Charging: The 2018 Porsche 911 provides an official EPA-rated driving range of up to 14 miles on a single battery charge.
NHTSA 5-Star NCAP laboratory crash evaluations are not currently on file for the 2018 Porsche 911.
Active Driver Assistance Systems (NHTSA Recorded): Forward Collision Warning (FCW) is documented as Not Specified and Lane Departure Warning (LDW) is documented as Not Specified in official NHTSA records for tested 2018 Porsche 911 models.
View complete 2018 Porsche 911 crash test & safety breakdown →
Top Reported Problem Categories
Ranked by total consumer complaint submissions recorded by NHTSA
Data Attribution & Context: Complaints are self-reported by vehicle owners to NHTSA and represent unverified consumer submissions. Complaint volume does not equal a statistically controlled failure rate and is not adjusted for total vehicles sold or cumulative mileage driven.
View all 2018 Porsche 911 problems & component breakdown (2 categories) →
Affected Component: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
Defect Summary: Porsche Cars North America, Inc. (Porsche) is recalling certain 2014 Cayman and Cayman S, 2014-2016 911 GT3, 2016 911 GT3 RS and 911 R, 2018 911 GT3 and 911 GT2 RS and 2019 911 GT3 RS, 911 GT3, and 911 GT2 RS vehicles. The Child Restraint System (CRS) instructions within the Owner's Manual may not provide enough specificity for proper installation. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 225, "Child Restraint Anchorage Systems."
Free Manufacturer Remedy: Porsche will notify owners, and dealers will provide a an Owner's Manual supplement with proper CRS installation instructions, free of charge. The recall began February 7, 2020. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is AKC0.
Affected Component: AIR BAGS
Defect Summary: Porsche Cars North America, Inc. (Porsche) is recalling certain 2018 718 Boxster, Boxster S and Boxster GTS, 718 Cayman, Cayman S and Cayman GTS, 911 Carrera, Carrera T, Targa 4 GTS, Carrera 4, Carrera S, Carrera 4S, Carrera GTS, Carrera 4 GTS, Carrera Cabriolet, Carrera S Cabriolet, Carrera 4S Cabriolet, Carrera GTS Cabriolet, Carrera 4 GTS Cabriolet, Targa 4, Targa 4S, Turbo, Turbo S, Turbo S Exclusive Series, Turbo Cabriolet, Turbo S Cabriolet and GT3 vehicles. The side air bag impact sensors may not have been properly tightened to the vehicle.
Free Manufacturer Remedy: Porsche will notify owners, and dealers will tighten the air bag sensors, as necessary, free of charge. The recall began May 17, 2019. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is AKA4.
View all 2018 Porsche 911 recalls & campaign history (2 campaigns) →