This week we pay tribute to an array of cars that deserved longer careers (from Smart Roadster to MG ZT260), we have in-depth buying advice for would-be owners of the Triumph Spitfire MkIV and 1500, we compare three six-cylinder coupes (3.6-litre Jaguar XJ-S, Alfa Romeo GTV6 and Ford Capri 2.8i), and we look at the latest price trends of 1950s Fords and classic Lotus Elans.