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Exhaust emission control
Vehicles manufactured by Porsche demonstrate that even high-performance sports cars can achieve moderate fuel consumption and exhaust emission values in their respective category.


This is accomplished by the use of fuel-efficient technologies such as auto start/stop, thermal management, electrical system recuperation, direct fuel injection, VarioCam Plus and, in conjunction with optional PDK, coasting mode.


The newly developed catalytic converters also provide efficient emission control, while the stereo Lambda control circuitry manages and monitors each cylinder bank separately. For each exhaust
tract, oxygen sensors, together with the engine electronics and injectors, regulate the composition of the exhaust gas, while another Lambda sensor on each cylinder bank monitors pollutant conversion in the respective catalytic converter.

Recycling
Intelligent lightweight construction is, and always has been, a fundamental aspect of the Porsche philosophy – for both technical and ecological reasons. This combination forms the basis for achieving low fuel consumption values in conjunction with high performance. On the technical side, various components are made with a high proportion of aluminum, magnesium, plastics and super-high-strength sheet steel. The materials used have been selected for their ability to withstand load, yet they are considerably lighter than conventional steel. As a result, the bodyshell of the new Cayman models has an aluminum content of approximately 44%.

On the ecological side, all materials used are meticulously selected. We use only state-of-the-art components, with priority given to products manufactured in a sustainable manner where possible. All synthetic components are easily recoverable and each material is labelled to facilitate its
separation for recycling. The reduction in the number of plastic variants helps to ensure more efficient recycling. Recycled plastics are used where they meet our exacting technical requirements.

In short, the new Cayman is around 95% recoverable.

In addition, Porsche uses a high proportion of environmentally friendly water-based paints. For us, environmental protection does not begin with the vehicle manufacturing process. It starts at the planning and development stage.

Fuel
The new Cayman models are designed to operate on fuels with an ethanol content of up to 10%. Ethanol has a positive impact on the CO2 balance since the plants grown for the production of this biofuel also absorb CO2 from the atmosphere. The release of hydrocarbons from the fuel system has been minimized thanks to the active carbon filter and the multilayered material from which the fuel tank is made.