Pontiac Bonneville (second generation, 1959 to 1960)

In its third year the 1959 Bonneville became the senior series with the addition of the four door hardtop sedan and the Safari station wagon, while the Pontiac Catalina became the junior series. A Safe-T-Track differential, used to minimize wheel spin, was an option beginning in 1959. Its model years run from 1959 to 1960. The body styles included the two door hardtop and the convertible of the first generation and, new in 1959, the four door hardtop sedan and the Safari station wagon, and the Bonneville stood as the senior series above the Catalina.