Nine contestants have 24 hours to convert their old used cars into off-road monsters and race a five-mile-long, all-terrain course including a 25-foot jump.
Three teams have just two days and £800 each to convert two used cars into one double-engined hybrid. The show climaxes with a five-mile race.
The teams fit very large engines - such as V8s - into tiny cars which originally contained engines under one litre.
The theme is pure speed and the teams have to turn old used cars into speed demons incorporating Formula 1 concepts, prior to testing them on a four-lap circuit.
Three teams take everyday cars and convert them into awesome autos capable of racing on their sides at a breathtaking 60 degrees around a five-mile course.
Three teams modify cars into off-roaders and drive them over giant see-saws as part of a five-mile-long, all-terrain killer course.
The nine contestants take 25-year-old cars and must stretch them to an awesome limo-style 25 feet before racing them against each other - in reverse.
The three teams have 24 hours to convert two cars each into double torque monster vehicles and race them to test their massive pulling power.
Three teams have two days and £800 each to convert used cars into off-roaders capable of surviving an extreme five-mile-long, all-terrain race course.
Adrian Simpson's favorite winning teams from the previous nine shows must make a complete working car from two motorbikes in their toughest challenge yet.
Cars are turned over and fitted with additional wheels to compete in a race in the opener of this series.
A car race in which looks are as important as engineering know-how.
Minis are modified to become off-road racers capable of popping wheelies front end first and in reverse.
Three teams compete to construct submersible off-road vehicles.
The teams transform old junkers into topflight racers.
The Ball and Socket Challenge has teams chopping cars in half and reconnecting them with articulated ball-and-socket joints.
Adrian Simpson and Rachael Simmonite oversee the proceedings as teams convert beloved bangers into off-road racers for use on an obstacle course
Three teams convert ordinary vans into monster trucks.
Three teams race each other for the top prize.