911 Carrera 4S

Performance

The latest 911 has a new generation of engines with direct fuel injection (DFI), and significantly more power. 345 hp is generated by the 3.6-liter boxer (horizontally-opposed cylinder) engine and 385 hp by the 3.8-liter power unit.

The results are outstanding performance and increased fuel efficiency and emission values. All made possible thanks to DFI, VarioCam Plus, an improved lightweight construction, reduced friction and a number of detailed technical solutions.

Braking system

Porsche brakes are renowned for their stopping power, setting the standards for deceleration and stability. They are designed to cope with extreme forces such as those experienced during hard braking.

The brake calipers have a monobloc aluminum construction. This makes them tough but light and enables a rapid response and release of the brake. The pedal travel is short and easy to modulate.

On the 911 Carrera models, the front and rear axles are host to a new generation of brakes with anodized black, four-piston aluminum monobloc calipers. The brake calipers are now even stiffer thanks to their closed-type design. The brake disc diameters are larger: 330 mm front and rear and the rear brake discs are 4 mm thicker – for even better braking performance.

The S models have four-piston aluminum monobloc calipers that are larger, reinforced and have a striking red painted finish. The front axle has larger brake pads and thicker brake discs.

All models have cross-drilled brake discs ensuring optimum braking in the wet. The discs are internally vented for rapid heat dispersal.

Other features include a powerful 10-inch brake booster for reducing pedal effort in the rear-drive models and integral air spoilers for enhanced air flow in the brake cooling ducts.

For even better braking performance with braking force support, a 9-inch tandem brake force amplifier is used on the all-wheel drive models.

Passive Safety

The 911 complies with all statutory requirements worldwide in respect of occupant safety, well in excess of the legal limits in terms of front, offset, side and rear impact protection.

The reinforced bodyshell structure contains a highly resiliant passenger cell which offers high levels of protection in the event of an impact. A patented system of longitudinal and transverse members is used at the front.

In the event of an accident, three separate load paths absorb energy, disperse the force of impact and minimize deformation of the passenger cell.

In addition, the front benefits from an extremely rigid bulkhead cross member made of ultra high-strength steel. This is designed to absorb impact forces from the longitudinal members to reduce deformation of the footwell and provide improved protection for the feet and legs. In a minor collision, a system of easily replacable impact absorbers prevent costly damage to the underlying bodyshell.

Also contributing to the overall rigidity of the car are the reinforced doors. The forces exerted in a frontal collision are additionally transmitted along a higher load path. For the protection of its occupants, it has therefore been possible to improve the deformation characteristics of the passenger cell even further.

Since 1985, all Porsche doors have had a ‘crash barrier’ made of ultra high-strength steel built into them – otherwise known as side impact protection. In the 911 Carrera models, this protection is enhanced by an integrated reinforcement made from super high-tensile boron steel.

Porsche was the first manufacturer in the world to use a hot-dip galvanised steel shell. Today, too, high-quality surface protection ensures a consistently high level of crash protection, even after many years on the road.