What is "cta-arsenal"

The CTA-Arsenal is a French racing car which was developed by the Centre for the study of car and cycle technology then abbreviated as CTA but today renamed as the UTAC and constructed by Arsenal at Châtillon. Two cars were eventually built. The car was intended as the French “national single seat racing car” to compete against Alfa Romeo but the project was abandoned because the car proved incapable of finishing the races in which it was scheduled to appear.