The Insurance Institute for Highway Safety (IIHS) and the National Highway Traffic Safety Administration (NHTSA) have passed on testing the 911, most likely because it’s a low-volume production car with a high price tag.
Reviews read by TheCarConnection.com indicate high praise for the stability system, which Forbes Autos says "feels like a partner in driving fun instead of a big brother, working with the 911 so well that you can keep it turned on and let it enhance the experience." Edmunds reviewers add that "traction control and stability control are included on all 2009 Porsche 911 models except the GT3," and the ultra-high-performance GT2 "uses a specially tuned version of Porsche's stability-control system," according to Car and Driver. Cars.com reviewers note that "all-disc antilock brakes and six airbags—including seat-mounted side-impact airbags and head airbags that emerge from the windowsills—are standard" on the 2009 Porsche 911.
There's not much in the way of optional safety equipment, but that's not surprising considering the amount of standard safety equipment. ConsumerGuide finds a "rear-obstacle-detection system" is available on all 911 Porsche models except for the GT3 variants; the system represents the full extent of available safety options. Aside from that, drivers have the option of turning the stability control off if they are feeling adventurous and want a purer driving experience.
When it comes to driver visibility, some problems arise on the Porsche 911 Targa and Cabriolet models. Visibility with the top up in the Porsche 911 Cabriolet models is impaired, but on both the Cabriolet and the Targa models, the poor rear visibility can be mitigated by the aforementioned rear obstacle detection system that is available as an option. On the Targa model, Forbes Autos says "rear visibility while backing up with the top open can be challenging due to the darkly tinted glass and because of the way the retracted panel doubles up against the rear window."