A tractor moves slowly down a long field between rows of grape vines, spraying a fine mist of water on the plants. The space is tight but even though there’s no driver behind the wheel the machine ...

In Staffordshire, cameras follow the engineers behind the world's fastest tractor - the JCB Fastrac 2, which has clocked 150mph - and see it in action. Off the coast of Devon, there's a look at the 53 ...