Disc.Turbo+1

How do they make Tennessee whiskey the traditional Lincoln County way? How do night goggles work? How do the Finnish relax in 160-degree saunas.

How do they make batteries from brine? How do they build a tropical island from trash? And how are fragrances blended to create different types of scents.

Derek finds a 1951 Chevy Deluxe that's been sitting for 44 years. He needs to get it running and stopping if he hopes to tackle the Chattanooga hills and make it home.

Paul has paid just over £15,000 for an Alfa Romeo 2000 GTV that appears to be in great shape. However, Drew is horrified when he learns it's an automatic.

With the deadline near on his Alfa build, Ant still has to get it running and finalise the design. So, he seeks out legendary designer Chip Foose for advice.

Ant must strip the Alfa 158 down, paint every part and rebuild the car for its debut at the US Grand Prix. Will its performance on the track live up to expectations.

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.

Richard wants to take the business to a new level by using social media and his role as Cog brand ambassador, resulting in a trip to the Middle East.

Andy calls in help to get his 1932 Roadster up and running. Another project faces problems - combining parts from two Chevy trucks into a single 'FrankenTruck.

The crew attempts to build the Renaissance master's most massive design: a three-storey siege ladder. But mistakes during the build threaten to render it immobile.

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

With the deadline near on his Alfa build, Ant still has to get it running and finalise the design. So, he seeks out legendary designer Chip Foose for advice.

Ant must strip the Alfa 158 down, paint every part and rebuild the car for its debut at the US Grand Prix. Will its performance on the track live up to expectations.

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.

The guys want to tackle something eco-friendly, and they get their wish when Mike chooses the original 'Econobox', a 1977 Honda CVCC that needs a rebuilt engine.

Henry and mechanic Sam visit two amazing sets of sheds in the West Country and Oxfordshire, in search of a vintage treasure to buy, restore and sell.

Henry and Sam scour a Cornish surf shack and find custom bikes, surf buggies and weird and wonderful objects of all kinds. Will they make some cash in Cornwall.

The day finally arrives when Chris and Francis attempt to start 025's engine, but after two years of silence there's no guarantee it'll work.

Motorcycle enthusiast Ellie wants to find a car that's fun to drive. Paul and Helen help her pick out a supermini that feels quick and looks good.

Paul has owned over 250 cars and now wants something exotic. With a budget of £35,000, he's looking for a stylish grand tourer with 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.