In this very fast episode, rally driver Catie shows off three amazing machines that are all made to race. She drives a F3 racing car at her track, tries out some amazing dragsters and heads to a lake to have a go in a super-fast F1 powerboat!

In this episode, rally driver Catie shows off three amazing machines that all have very big wheels. She drives a monster truck over some old cars, tries out the unusual monowheel and gets behind the wheel of a giant dump truck!

In this episode, rally driver Catie shows off three amazing machines which all help people build things. She moves a load of soil with a bulldozer, shows off an incredible tunnel-boring machine and then digs up some earth with a digger!

In this episode, rally driver Catie shows off three amazing machines that run on rails. She helps drive a steam train, rides an amazing Maglev train and then takes control of a tram!

In this episode, rally driver Catie shows off three amazing machines that all have sails. She becomes captain of a tall ship, tries out a superfast racing catamaran and sails a land yacht!

In this episode, rally driver Catie shows off three amazing machines that all have only three wheels. She drives an incredible motor trike, shows off the fastest electric motorbike in the world and gets behind the wheel of a teeny tiny car!

In this episode, rally driver Catie shows off three amazing machines that are used on farms. She faces a challenge in a tractor, demonstrates a funny asparagus harvester and then drives a combine harvester!

In this episode, rally driver Catie shows off three amazing machines that all belong on water. She tries out a water scooter, visits the largest cruise ship in the world and then pilots a speedy yacht!

In this episode, rally driver Catie shows off three amazing machines that are all super-fancy! She drives a supercar, shows us around a really fancy superyacht and then challenges herself to drive a stretch limousine around her track without spilling any drinks!

In this episode, rally driver Catie shows off three amazing off-road machines. She rides a quad bike, shows us an amazing space exploration vehicle and then drives a tank!

Catie tests out three amazing trucks: an articulated lorry, a road train and a front-loading bin lorry!

Catie tests out three amazing vehicles that travel underwater: a submarine, a speedboat that can go underwater and a scuba scooter.

Catie tests out three amazing machines that travel move on snow: a snowmobile, snow blowers and a snow groomer.

Catie tests out three amazing machines that travel have propellers: a microlight, one of the largest planes in the world and a racing boat.

Catie tests out three amazing machines that are all really tall: a cherry picker, skyscraper-building tower cranes and a crawler crane.

In this episode, rally driver Catie heads to an airfield to see three amazing machines that fly! She first tries flying a jet plane, then checks out an amazing space shuttle and then pilots a helicopter.

In this episode, rally driver Catie shows off three amazing machines that go on both land and water. She pilots a hovercraft, checks out a machine that can go on land, sea and ice, and then drives an amphibious tank.

In this episode, rally driver Catie shows off three amazing machines that are all made to lift things! She heads to a dockyard to drive a straddle carrier, checks out an amazing ship crane, and then heads to a warehouse to drive a forklift truck.

In this episode, rally driver Catie shows off three amazing emergency machines at her track. She drives a fire engine, checks out lots of hover bikes and then drives a police car.

In this episode, rally driver Catie looks back at her favourite land, water and air machines - but which will they be?