Porsche 919 Hybrid
Porsche revealed an evolution of the 919 Hybrid on 11 April 2018, as it broke the lap record in Circuit de Spa-Francorchamps with a lap time of 1:41.77, with Neel Jani behind the wheel. The lap time was 0.783 seconds faster than Lewis Hamilton's flying qualification lap in 2017, previously posting a 1:42.553 in his Mercedes AMG F1 W08, a Formula One car. Jani was also over 12 seconds faster than the standard 919 Hybrid's 2017 pole position lap time of 1:54.097. During the lap, Jani's speed trap was at the Kemmel Straight, with an average speed of .
Porsche 997
The GT2's engine was based on the existing 3.6 L (220 cu in) flat-6 engine, but features twin variable geometry turbochargers (as used on the 997 turbo), generating a maximum power output of at 6,500 rpm and of torque at 2,200 rpm. Unlike the 997 Turbo, the 997 GT2 uses a rear wheel drive layout for reduced weight (primarily for competing in GT2 class racing as with its predecessors), and boasts a power increase from a newly designed expansion intake manifold, and shorter turbo intake manifolds. Further, a full titanium exhaust system was fitted to the 997 GT2 contributing to reduced weight as compared to the turbo. Despite the power hike, Porsche claims fuel consumption at full throttle is improved by 15 percent compared with the 997 Turbo. The GT2 accelerates in 3.6 seconds to and in 7.4 seconds to and has top speed of . This makes it the first 911 to exceed the top speed barrier after the 1998 Porsche 911 GT1 Race Version (which is not considered to be an actual Porsche 911 due to its mid-mounted engine and overall shape). The Porsche 997 GT2 has a curb weight of . The only transmission available is a 6-speed manual.