2018 Porsche 911 GT3
Recalls, most-reported problems, crash-test ratings, fuel economy and what a 2018 Porsche 911 GT3 is worth — from official NHTSA and EPA data. 1 on record.
2018 Porsche 911 GT3 at a glance
Included: that car's specs and build sheet, model-year recall campaigns and a fair price.
2018 Porsche 911 GT3 recalls 1
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 Fede…
Fix: 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.
Source: U.S. NHTSA, checked 4 Nov 2026. A campaign covers the model year; to see whether a particular car still needs the repair, check its VIN on NHTSA.gov or ask a franchised dealer.
2018 Porsche 911 GT3 common problems
The most-reported problem areas across all 2 owner complaints filed with NHTSA — and what to check before you buy.
2018 Porsche 911 GT3 MPG & running costs
Source: U.S. EPA / DOE fueleconomy.gov. The EPA lists 2 versions of this model year; combined is shown as a range and the other figures are averages.
Estimated 5-year cost to own
A rough guide to what running a 2018 Porsche 911 GT3 costs over five years and 75,000 miles.
How this is estimated: fuel is the U.S. EPA annual cost at 15,000 miles a year. There aren't enough comparable listings to estimate depreciation for this model, so it is left out. Not included: insurance, maintenance, repairs, taxes, registration and finance costs. Treat it as a comparison guide, not a quote.
Dimensions & weight
Manufacturer-reported figures for the 2018 Porsche 911 GT3. Source: Transport Canada vehicle specifications via NHTSA.
Investigations & service bulletins
NHTSA defect investigations 1
Desiccated Air Bag Inflator Rupture Open
From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to burn too quickly when ignited. The rapid burning can cause the inflator to rupture during deploymen…
NHTSA #EA21002 · Air Bags · opened Sep 2021An investigation means NHTSA is examining a possible defect — it is not a recall, and many close without one.
Manufacturer service bulletins 578
Technical notes the manufacturer sent to dealers about known issues and fixes. Useful to mention to a mechanic — they are not recalls and repairs may not be covered. Showing the 10 most recent of 578.
Manufacturer's Certificate for Overview of approved Porsche C40 GT engine oils
Bulletin No. 37-26 · Power Train, Engine · Sep 2026Manufacturer's Certificate for Overview of Approved Porsche C40 Engine Oils. Note that this bulletin covers all models back to model year 1984, for which C40 engine oils are allocated.
Bulletin No. 28-26 · Power Train, Engine · Sep 2026Manufacturer's Certificate for Overview of Approved Porsche C20 Engine Oils. Note that the bulletin covers all models back to model year 1984, for which C20 engine oils are allocated.
Bulletin No. 27-26 · Power Train, Engine · Sep 2026Manufacturer's Certificate for Overview of Approved Porsche C30 Engine Oils. Note that the bulletin includes all models back to model year 1984, for which C30 engine oils are allocated.
Bulletin No. 26-26 · Power Train, Engine · Sep 2026Manufacturer's Certificate for Overview of Approved Porsche A40 Engine Oils. Note that this bulletin covers all vehicles from model year 1997 to 2020, for which A40 engine oils are assigned. Model years 1997-2001 are not available for selection in the system.
Bulletin No. 25-26 · Power Train, Engine · Sep 2026Special Tools and Equipment Information for alignment machines - Q3 2026 Software Spec Update Available
Bulletin SPTL2609 · Steering, Suspension, Wheels · Sep 2026Technical Information for Damage to Nano Plug Contacts Due to Utilization of Incorrect Measuring Equipment
Bulletin No. 12-26 · Electrical System · Sep 2026Special Tools and Equipment Information for Diagnostic Equipment Standards for all USA Porsche Centers
Bulletin SPTL2314a · Aug 2026Special Tools and Equipment Information for alignment machines - Q2 2026 Software Spec Update Available
Bulletin SPTL2608 · Steering, Suspension, Wheels · Aug 2026Product Knowledge for Model Type Designations
Bulletin GR16D8a · Aug 2026Source: NHTSA Office of Defects Investigation, listed for the 911 GT3 RWD. Model-year data, not specific to one car.
Canadian recalls 3
Transport Canada recall campaigns for the 2018 Porsche 911 GT3. Relevant if the car was first sold in, or imported from, Canada.
Lights And Instruments
Issue: On certain vehicles, the rear reflex reflectors are mounted too low, Canadian regulations require the rear reflex reflectors to be mounted at least 380 mm above the road surface. Safety Risk: This small error does not affect vehicle safety. Corrective Actions: This is not a recall. The company has made changes to ensure that all new vehicles have fully compliant rear ref…
Transport Canada #2020578 · Nov 2020Other
Issue: On certain cars, the owner's manual may be missing instructions on how to properly install a child seat. Safety Risk: If a user does not understand how to properly install a child seat, there could be an increased risk of injury in a crash. Corrective Actions: Porsche will notify owners by mail and instruct you to take your car to a dealer to receive a supplementary owne…
Transport Canada #2019621 · Dec 2019Airbag
Issue: On certain vehicles, the airbag sensors may not be properly attached to the chassis. This could cause the airbag system not work as designed in a crash. Safety Risk: An airbag system that does not work properly in a crash could create an increased risk of injury. Corrective Actions: The company will notify owners by mail. Owners will be instructed to take their vehicle t…
Transport Canada #2019114 · Mar 2019Source: Transport Canada Motor Vehicle Safety Recalls Database.
About the Porsche 911 GT3
The Porsche 911 GT3 is a high-performance homologation model of the Porsche 911 sports car. It is a range of high-performance models, which began with the 1973 911 Carrera RS. The GT3 has had a successful racing career in the one-make national and regional Porsche Carrera Cup and GT3 Cup Challenge series, as well as the international Porsche Supercup supporting the FIA Formula One World Championship.
From Wikipedia, licensed CC BY-SA 4.0. Describes the model line in general, not this model year specifically.