The Dauphine used a version of the 4CV's watercooled Ventoux engine with capacity increased from 760 cc to 845 cc, and power increased from 19–32 hp (14–24 kW). According to Road & Track, the Dauphine accelerated from 0–110 km/h (0–68 mph) in 32 seconds. Engine cooling was facilitated by air intakes behind each rear door and a vented rear fascia.
Classic and Vintage Cars