Derek takes a shine to a rare 1958 Armstrong Siddeley Sapphire with a long family history, a convertible Triumph Herald brings a few smiles on auction day and Sarah casts her critical eye over a set of wartime morale-boosting posters.

Derek picks up some "emerging" sporting classics from the far east when three Datsun Zs appear, and an unusual lot arrives that run on caterpillar tracks not wheels. Meanwhile Sarah tries to get to grips with an old jukebox with confusing instructions.