The first generation of Plymouth Barracuda was launched in 1964 and based on the smaller Chrysler A-body which limited the size of engine that could be fitted under the bonnet. In 1967 the second generation Barracuda was launched, still based on the Valiant A-body but now with its own sheet metal and the ability to take bigger engines. 1967 styling came from John E. Herlitz and John Samsen under Dick McAdam, with curvy lines that seemed to suggest the 'coke bottle' waistline of GM cars. Offered in coupe, fastback or convertible, to match styles available on the Ford Mustang. Base cars were given a 3.7-litre inline six, although the 4.5-litre V8 was more common. However, from 1968 a 5.2-litre (318 cu.in) V8 was offered as the first V8 and a 5.6-litre V8 (340 cu.in.) topped the range, apart from the limited edition lightweight 7-litre Hurst Performance cars. 1969 cars were given more power. A new E-body derived from the B-body was created for the entirely new 1970 Barracudas.