The Porsche 964 RWB owned by automotive illustrator and designer Jon Sibal is a standout within the Rauh-Welt Begriff community for its refined, "mature" aesthetic compared to the brand's often flamboyant builds. Developed in collaboration with H&R Springs for the 2015 SEMA Show, the car features a full RWB widebody conversion finished in a sleek Nardo Gray with a unique rear wing that deviates from the typical towering GT-style wings. Underneath its widened arches, the 964 is equipped with custom H&R coilover suspension, Brembo Club Race brakes, and three-piece Work Meister S1 wheels (18x10.5 front, 18x13 rear) wrapped in Pirelli P Zero Rosso tires. The air-cooled 3.6-liter flat-six engine breathes through a custom exhaust system utilizing mufflers from a Porsche 997.2 GT3, while the interior has been lightened with RS-style door cards and Recaro Pole Position seats.