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Rear-axle steering 911 Turbo S Cabriolet

Porsche 911 Turbo S Cabriolet - Rear-axle steering

Rear-axle steering

Thanks to the rear-axle steering which is fitted as standard, everyday practicability and performance have both been equally increased. The system consists of two electromechanical actuators fitted on the rear axle instead of the conventional tie rod. It therefore steers the rear wheels of the 911 Turbo models around up to 2.8 degrees in the same or opposite direction as the steering angle on the front axle, depending on speed.

At speeds up to 50 km/h the system steers the rear wheels in the opposite direction to that of the front wheels. This has the virtual effect of shortening the wheelbase. The turning circle is reduced, steering into corners becomes much more dynamic and parking is noticeably easier.

At speeds above 80 km/h, the system steers the rear wheels in the same direction as that of the front wheels. The result is a virtual extension of the wheelbase and increased stability, for example when performing high-speed manoeuvres on the motorway.

Between 50 and 80 km/h the steering direction is constantly changing depending on the driving conditions.

Thanks to the excellent stabilising properties of rear-axle steering, it has also been possible to make the steering ratio on the front axle more direct around the central position. The advantage is greater agility without any loss of stability at higher speeds.

The flexibility of the rear-axle steering makes it clear that there is no contradiction between stability and agility, performance and everyday practicality. The result is greater manoeuvrability in day-to-day driving – and a clearly noticeable increase in maximum performance.

Porsche Rear-axle steering - Identity 911

Identity 911

Porsche Rear-axle steering - Exterior

Exterior

Porsche Rear-axle steering - Interior

Interior

Porsche Rear-axle steering - Engineering 911

Engineering 911

Porsche Rear-axle steering - Idea

Idea

Porsche Rear-axle steering - Performance

Performance

Porsche Rear-axle steering - Porsche Doppelkupplung (PDK)

Porsche Doppelkupplung (PDK)

Porsche Rear-axle steering - Porsche Traction Management (PTM)

Porsche Traction Management (PTM)

Porsche Rear-axle steering - Variable Turbine Geometry (VTG)

Variable Turbine Geometry (VTG)

Porsche Rear-axle steering - VarioCam Plus System

VarioCam Plus System

Porsche Rear-axle steering - Expansion intake manifold

Expansion intake manifold

Porsche Rear-axle steering - Efficiency

Efficiency

Porsche Rear-axle steering - Coasting

Coasting

Porsche Rear-axle steering - Sport Button

Sport Button

Porsche Rear-axle steering - Porsche Torque Vectoring Plus (PTV Plus)

Porsche Torque Vectoring Plus (PTV Plus)

Porsche Rear-axle steering - Dynamic engine mounts

Dynamic engine mounts

Porsche Rear-axle steering - Chassis

Chassis

Porsche Rear-axle steering - Porsche Active Suspension Management (PASM)

Porsche Active Suspension Management (PASM)

Porsche Rear-axle steering - Rear-axle steering

Rear-axle steering

Porsche Rear-axle steering - Porsche Dynamic Chassis Control (PDCC)

Porsche Dynamic Chassis Control (PDCC)

Porsche Rear-axle steering - Wheels and TPM

Wheels and TPM

Porsche Rear-axle steering - Porsche Active Aerodynamics (PAA)

Porsche Active Aerodynamics (PAA)

Porsche Rear-axle steering - Porsche Stability Management (PSM)

Porsche Stability Management (PSM)

Porsche Rear-axle steering - Lights

Lights

Porsche Rear-axle steering - Brakes

Brakes

Porsche Rear-axle steering - Engineered body design

Engineered body design

Porsche Rear-axle steering - Airbags

Airbags

Porsche Rear-axle steering - Roll-over protection

Roll-over protection

Porsche Rear-axle steering - Interior

Interior

Porsche Rear-axle steering - Seats

Seats

Porsche Rear-axle steering - SportDesign steering wheel

SportDesign steering wheel

Porsche Rear-axle steering - Assistance Systems

Assistance Systems

Porsche Rear-axle steering - Instruments

Instruments

Porsche Rear-axle steering - Luggage compartment

Luggage compartment

Porsche Rear-axle steering - Additional Features

Additional Features

Porsche Rear-axle steering - Porsche Communication Management (PCM)

Porsche Communication Management (PCM)

Porsche Rear-axle steering - BOSE® Surround Sound-System

BOSE® Surround Sound-System

Porsche Rear-axle steering - Burmester® High-End Surround Sound-System

Burmester® High-End Surround Sound-System

Porsche Rear-axle steering - Hood

Hood

Porsche Rear-axle steering - Electric wind deflector

Electric wind deflector

Porsche Rear-axle steering - Fuel economy and recycling

Fuel economy and recycling

Porsche Rear-axle steering - Exhaust emission control

Exhaust emission control

Porsche Rear-axle steering - Fuel

Fuel

Porsche Rear-axle steering - Noise

Noise