Avante was a one-off British coupe whose glass-fibre bodyshell began life in 1973 as a project set by a youth club in Huddersfield to teach teenagers how to work with glassfibre, originally intended to sit on a Volkswagen Beetle floorpan. Unfinished, it was sold in September 1974 for £100 to Lyndon Kitchen, who sourced an unfinished spaceframe chassis from Bolton and extended it by two feet for the body, fitted…