 In 1978 Unett did the development testing for the Chrysler Sunbeam Lotus, which was renamed the Talbot Sunbeam Lotus when Chrysler sold the company to Peugeot.Unett and co–driver Terry Harryman took a works development Sunbeam Lotus to Galway to compete in the 1978 Galway International Rally, but crashed out in appallingly wet weather, with only a handful of cars reaching the finish line.Unett became involved in world class competition when The Sunbeam Lotus took part in international rallying, going on to win the RAC Rally in 1980 in the hands of Henri Toivonen and the world rally championship (manufacturer) 1981, (teams again being managed by Des O'Dell) with Unett being development engineer, test driver and part of the roadside rally support team.