Automotive Czinger 21C Spyder Has More Downforce Than Any Other Convertible And The Coolest Brakes You’ll See All Week Nermeen Nabil August 14, 2026 At 150 mph the 21C Spyder produces 3,307 pounds of downforce with the roof on, matching the coupe, and with it off that figure slightly drops to 3,267 pounds.  Continue Reading Previous: Czinger’s New 21C Spyder Is Rarer Than A Bugatti And Just As Quick Related Stories Automotive Czinger’s New 21C Spyder Is Rarer Than A Bugatti And Just As Quick Nermeen Nabil August 14, 2026 Automotive The Most Amazing Convertible At Monterey Is This Locally Built 1,250-HP Hypercar Nermeen Nabil August 14, 2026 Automotive Ferrari’s New CZ26 One-Off Could Pass For A Kia EV-Supercar Nermeen Nabil August 14, 2026