cabriolet

Concise Oxford English Dictionary © 2008 Oxford University Press:
cabriolet /ˈkabrɪə(ʊ)leɪ/

▶noun

• 1 a car with a roof that folds down.

• 2 a light two-wheeled carriage with a hood, drawn by one horse.

– origin C18: from Fr., from cabriole (see cabriole); so named because of the carriage's motion.