Porsche has equipped the new Cayenne (Cayenne: Fuel consumption* combined (WLTP) 12.1 – 10.8 l/100 km, CO₂ emissions* combined (WLTP) 275 – 246 g/km) with extensively optimised engines. The Cayenne, Cayenne S and Cayenne E-Hybrid are significantly more powerful than their predecessors. The V6 engine in the Cayenne, for example, now generates 260 kW (353 PS) and 500 Nm of torque with the same 3.0-litre displacement. This is equivalent to an increase of 10 kW (13 PS) and 50 Nm. In conjunction with the optional Sport Chrono package, this shortens the sprint from zero to 100 km/h to a spritely 5.7 seconds. The Cayenne now reaches a top speed of 248 km/h. Its 3.0-litre V6 turbo also provides the combustion-engine base for the Cayenne E-Hybrid (Cayenne E-Hybrid: Fuel consumption* combined (WLTP) 1.8 – 1.5 l/100 km, CO₂ emissions* combined (WLTP) 42 – 33 g/km, Electric power consumption* combined (WLTP) 30.8 – 28.7 kWh/100 km, Electric range* combined (WLTP) 66 – 74 km, Electric range* in town (WLTP) 77 – 90 km).
All variants of the new Cayenne are equipped with a revamped eight-speed Tiptronic S. With shorter reaction and shift times in Sport and Sport Plus modes, the automatic gearbox offers a noticeably improved performance. In Normal mode, the gearbox optimises the efficiency of the drive system. The Tiptronic S quickly shifts to the next higher gear to save fuel. Software optimisation also improves the interaction between the gearbox and the engine.
Cayenne S with 4.0-litre V8 biturbo engine
The new Cayenne S (Cayenne S: Fuel consumption* combined (WLTP) 13.4 – 12.4 l/100 km, CO₂ emissions* combined (WLTP) 303 – 282 g/km) now comes with a bigger displacement: Porsche has replaced the previous 2.9-litre V6 with a new 4.0-litre V8 biturbo engine – achieving a significant power boost in the process: 349 kW (474 PS) and 600 Nm of torque amount to an increase of 25 kW (34 PS) and 50 Nm. The Cayenne S now accelerates to 100 km/h in 4.7 seconds and boasts a top speed of 273 km/h – accompanied by powerful and evocative sound characteristics typical of this engine layout.
For use in the new Cayenne S, the eight-cylinder has undergone an extensive overhaul: engineers focused on reducing consumption and emissions. Among other measures, this was achieved through the switch from a twin-scroll to a single-scroll turbocharger. The resulting higher exhaust-gas temperatures reduce fuel consumption in the highly dynamic range. In addition, a higher fuel injection pressure of 350 bar improves engine efficiency. New electrically controlled wastegates noticeably optimise the engine’s responsiveness. Porsche is also introducing a new two-stage variable valve lift in the Cayenne S for the first time. The intake camshafts now have two cam profiles per valve. Actuators switch between these profiles at lightning speed. At low engine loads, the engine operates with short valve opening times and minimal valve lift. At high loads, on the other hand, the system activates profiles with a large lift and long opening times in order to achieve a greater cylinder charge. In combination with the fully variable camshaft control (Vario Cam Plus), both states can be combined with short or long valve overlaps. New magnetoresistive camshaft sensors tap the full potential of this technology by determining the high-resolution position of the camshafts in real time. The engine control system precisely selects the appropriate valve timing for each load condition. This results in a noticeably improved performance while at the same time optimising CO₂ values.
To ensure this performance on a reliable and continuous basis, Porsche also equips the first piston ring with a steel ring carrier. In combination with optimised piston cooling, this lends the eight-cylinder added robustness.