Jim Hall pursues Dave MacDonald in his Lang Cooper during the May, 1964 USRRC race at Laguna Seca. Hall would eventually get by the speedy MacDonald for the win. This race was the debut of the single speed GM torque converter gearbox in the Chaparral. Roger Penske would finish 3rd in the second Chaparral, with a 4-speed Colotti manual gearbox. Dave Friedman photo.