Although the first and second generation Barracudas were heavily based on the contemporary Valiants, Plymouth wanted them perceived as a distinct models. Consequently, the "Valiant" chrome script that appeared on the 1964 model's trunk lid was deleted on the 1965 model in the US market. For 1966, the stylized red-and-blue Valiant "V" emblems were replaced on the Barracuda with a model-specific stylized fish logo. For 1967, the new 4-barrel V-8 with was optional only in the Formula S which boosted the Barracuda's performance with 0–60 mph in 7.4 seconds and the quarter mile covered in 15.9 seconds. In other markets such as Canada and South Africa, where Valiant was a marque in its own right, the car remained known as "Valiant Barracuda" until the A-body Barracuda was discontinued after 1969.