Disc.Turbo+1

How have they designed a car that can call the emergency services? How is metal turned into magnets? And how are the biggest ships propelled.

How do they look after sharks at the world's biggest aquarium? How do they grow precious stones? And what does it take to build a luxury Bentley.

Derek extracts a 1967 Ford Mustang that has sat dormant for 28 years, but rust and neglect won't stop him from transforming it into a new creation.

Drew and Paul rescue a classic: a Vauxhall Viva. The car was extensively modified in the 1960s but after years in storage, it's well past its best.

Ant tries to sweet-talk his way into taking the completed Alfa 158 to the US Grand Prix in Austin. But the car isn't done, and the crew must do the heavy lifting.

Ant's ambitious Alfa build is on the home stretch, but his new baby is due any day. And, he gets good news about his plan to unveil the car at the US Grand Prix.

Henry Cole and motorcycle guru Sam Lovegrove travel from Cornwall to Oxfordshire to rummage in some of Britain's most amazing sheds and make some cash.

Henry and Sam are in Buckinghamshire seeking hidden automotive gems to sell. They find stationary engines, traction engines and vintage petrol cans.

Richard proves his worth by winning business from Europe's largest private car collector. The Cogs head to France to deliver a Rolls Royce.

Andy loves a crazy car concept, turning an old ambulance into a Maryland sports-mobile. Then, he thinks outside the box to soup-up a car for his buddy in blue.

A team comes together to construct Leonardo da Vinci's visionary image of a tank, fitted with 30 cannons that fire 360 degrees around the three ton machine.

Around the world, there are extraordinary building mistakes. Design teams and experts analyse what went wrong and how engineers are fixing them.

Ant tries to sweet-talk his way into taking the completed Alfa 158 to the US Grand Prix in Austin. But the car isn't done, and the crew must do the heavy lifting.

Ant's ambitious Alfa build is on the home stretch, but his new baby is due any day. And, he gets good news about his plan to unveil the car at the US Grand Prix.

Chris and Francis try to make up lost time following lengthy wheel problems, but leaky brakes and a 12-tonne jigsaw stand in their way.

Mike was challenged to find a classic endurance sports car and the Volvo PV544 fit the bill. Mike finds a running example, but with an engine that few can master.

Henry and Sam scour Britain's sheds in search of vintage treasure to restore and sell for a profit. In Surrey they find Pontiac ambulances and automotive sculptures.

In Cornwall, Henry and Sam meet a collector whose cottage is full of memorabilia, penny farthings and lights of all description - watched over by Buster, the guard rabbit.

Chris and Francis install a 2.5 tonne traction motor, and head to the Highlands revealing 37025's past and a family connection for Francis.

An aerospace engineer has £20,000 to spend on a noisy and fast car. Paul and Helen will need to be creative to find an affordable big Coupe with rear seats.

Grant asks Helen and Paul to find him a prestige car that costs no more than £360 a month. He wants a sporty design, a large boot and a powerful engine.

Around the world, there are extraordinary building mistakes. Design teams and experts analyse what went wrong and how engineers are fixing them.