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The Tesla Roadster Is Far From The First Car To Use Fans For Downforce
Engadget • • general
Key Points:
- Tesla showcased the next-generation Roadster performing stunts, including driving upside down on a C-shaped ramp using a multi-mode fan and ground sealing system that generates downforce by pulling air from underneath the car.
- This fan-based downforce technology is not new; McMurtry Automotive's Spéirling and historic vehicles like the 1970 Chaparral 2J and the 1978 Brabham BT46 "Fan Car" also used fans to create suction for increased downforce and grip.
- Tesla claims the Roadster can generate up to 2 gs of downforce, while McMurtry's Spéirling can corner at more than 3 gs and cling to surfaces at any speed, including at a standstill.
- McMurtry will produce 100 Spéirling Pure cars starting at $132,300, with deliveries expected by the end of 2026; Tesla plans to begin Roadster production in 2028, offering reservations at $50,000 for the base model and $250,000 for the "Thrust" trim with suction and thrusters.
