However, Achleitner was clear on Porsche's main goal. 聯When we launch a new 911, its a very simple goal. A new 911 has to be better than the old one,聰 he said. Enlarge the diameter of the rear wheels. Calculations and simulations showed that enlarging the diameter of the rear wheels would improve dynamics even though it would also add weight. The 2020 Porsche 911 S and 4S now ride on 21-inch wheels at the rear and 20s up front, though the tire sizes haven't changed at 305/30 rear and 245/35 up front. While this influenced all of the surrounding areas of the suspension and the packaging of the car, Porsche felt it was worth the effort because it would make the handling more neutral and controllable. The company had experience with the practice as the 918 Spider and GT2 and GT3 cars already use staggered wheel sizes, and there are no better handling Porsches than those.
Handling becomes more neutral because the bigger rear wheels provide greater rear end stability and grip without having to go with a wider tire. Porsche didn't want to go all out here to create a two-door Panamera, Achleitner said, but the company achieved this goal by giving those adaptive adjustable dampers a wider spread of damping force. Not only can they be firmer as noted above, but they are softer as well. They react much quicker than before聴up to 100 times per second聴and they react in all stages of damper travel to adapt to road conditions. Its the first major change to the Porsche Active Suspension Management dampers since they were launched in 2004. According to Porsche, these changes make absorbing quick, short bumps like cobblestone roads much more effective. This didn't mean reducing total sound in the cabin so much as reducing noise from the wide rear tires, which Achleitner said is just loudness.
After all, Porsche owners want to hear the distinct, mid-tonal thrum of their flat-6 engines. They don't, however, want to hear water and pebbles splash around in their wheel wells or the white noise of tires on rough pavement. Porsche pursued three main strategies to reduce emissions. The engine now uses asymmetrical intake camshafts that allow adjacent valves of a cylinder to open with a different degree of lift (2 and 4.5 millimeters versus a consist 3.6 millimeters in the 991) under partial load. This, combined with other efforts to optimize fuel management and combustion reduce emissions and improve fuel economy. A new particulate filter in the exhaust system also reduces emissions, though it is not included in U.S. An extra gear for the new 8-speed automatic transmission is another fuel- and emissions-savings measure. Finally, Porsche future-proofed the car this time around by developing it with a hybrid in mind聴likely a plug-in hybrid聴in case regulations change anywhere in the world that require either stricter emissions or zero-emissions zones. The 911's center touchscreen grows from 7.0 to 10.9 inches for the 2020 911 and its hardware and software provide faster processing of inputs and data. As it has since 2017, the system offers Apple CarPlay compatibility and can be controlled with tablet-style stretch, pinch, and swipe gestures. Internet radio, a wi-fi hot-spot, and real-time traffic information for the navigation system were previously available, but a new onboard modem now provides these services, as well as access to smart home functions and Amazon Music.
9 were official retirements and Toyota's three had become one. 95 Aston Martin went into the tyres at Arnage. He managed to keep going over the gravel, and rejoin with damage to the front and return to the pits for a lengthy repair. By mid morning on Sunday the only real race was GTE Pro where the top four exchanged the lead at each pit stop. 1 Porsche 11 laps ahead of the LMP2 pack with the nearest LMP1h cars out of contention. 1 Porsche looked untouchable right up until 11:30 when Lotterer rolled to a halt at the side of the track at the bottom end of the Mulsanne straight. With such a lead, the car remained at the top of the timing screen for some time, but the end was inevitable. 35 Signatech Alpine hacked away at the laps. 2 Porsche that we had counted out last night had also been chipping away at the laps and by 11:30 had recovered to 5th place and theoretically able to challenge for a podium finish.
13 delayed by a stop-and-go penalty for a pit lane infringement. 38 Jackie Chan DC Racing Oreca was running at a pace that would make it catch-able in the time available but only if there were no slow zones or safety car periods. In GTE Pro at noon there was still all to play for in the four way Porsche, Corvette, Aston Martin, Ford GT battle raging with any of the top four possible winners. 62 Scuderia Corsa Ferrari. 2 Porsche to claw back more time. 8 was also fighting back and had made it to 10th overall by that time, about half way up the surviving pack of LMP2 competitors. 49 ARC Bratislava touched at the Dunlop chicane leaving debris on the circuit and bringing out a local yellow flag. Both cars continued and the yellow flags were only brief. 38 Oreca LMP2 coming out of Arnage towards Porsche curves. 38 Oreca who handed the car over to Ho Pin Tung.