With its seductive curves, stylish body, and two-tone paint, the Triumph Herald was regarded as a chic fashion statement by the 1960s middle classes. Thirty-five years on it's enjoying renewed cult status. Quentin Willson meets Harry Webster , who co-designed the original 1959 model with Giovanni Michelotti , and talks to some owners - including magician Fay Presto who has a Herald convertible 1200 - to find out why this car has such enduring appeal.