A couple goes out for a drive, but their car has clearly seen better days - and so have its tyres.

Worn tyres spell danger' is a message that's hard to miss, as it's repeated four times in appropriately sepulchral tones, the fourth after the risks have been graphically dramatised. We know how this young couple's jaunt is likely to end, but despite the film's punchy brevity there's room for dramatic irony. Note the way the driver polishes the bonnet or pauses to install the optional roof as it starts to rain, in both cases completely, and fatally, oblivious of problems elsewhere.

Live action safety information film. A man takes a woman for a drive in a convertable Morris Minor, a sudden shower and the condistion of his tyres leads to an accident.