I have always made a point of running around in the cars to test them. The Jaguar is being ‘run in’ following an engine rebuild and the Lotus had been proving a challenge by constantly breaking down with electrical faults. The fourth photo shows my Uncle Vic listening for a gearbox noise present in an  Austin 1300. He was well known for his extensive knowledge on BMC/ BL cars of this era, especially the complex hydro elastic suspension.