The Lancia Beta range was developed after Fiat took over at Lancia, and essentially used Fiat mechanicals in a new Lancia package. The 4-door berlina weas launched in 1972 with a Fiat-designed fastback body that did not have a hatchback. Designed by Aldo Castagno and Pietro Castagnero, the Coupe was launched in 1973 a year after the berlina. In 1974 the Beta Spider was announced based on the Coupe but with a body designed by Pininfarina and manufactured by Zagato. In 1975 the HPE model was exhibited, combining Coupe-like styling on the longer berlina floorpan and having a hatchback. The final version of the Beta was the 3-box saloon version called the 'Trevi' and designed by Pininfarina. The Beta badge was given to the mid-engined Lancia Beta Montecarlo which had little in common with the front wheel drive cars except for the power units. Beta engines ranged from 1300cc to 2000cc. In 1982 the 'Volumex' versions (Badged 'VX') was offered, which fitted a roots Supercharger and boosted power to 135bhp on the 2-litre.