Tesla unveils a Roadster suction system that recalls the Chaparral 2J

RACER reports that Jim Hall's Chaparral 2J used twin fans to draw air from beneath the car, increasing grip even at low speeds. Racing authorities banned the system after the 1970 season. Tesla announced a multi-mode suction system for its next-generation Roadster and demonstrated the car driving up a wall, though RACER notes the demonstration doesn't establish what will reach production.