Tiff and Jason team up with F1 aces Johnny Herbert and Karun Chandhok for the ultimate dogfight. Vicki reveals all about Vauxhall's new compact MPV.

Ferrari F12 vs. Aston Martin Vanquish (with Karun Chandhok); Jaguar Mark 2 by Callum; Alfa Romeo 4C

Tiff Needell and Formula E racing driver Karun Chandhok put two supercar fast limos up against each other on the track - the Mercedes S63 AMG and Jaguar XJR.

The presenting team test the Citroen C4 Cactus, a car with airbags on outside, and find out how well it can stand up to some abuse.

Vicki Butler-Henderson drives the BMW i8 and decides if it’s the future of supercar design.

And Tiff drives a forty year old Formula Ford racing car with a special story to tell, then finds out if it can beat a modern day Lotus with twice the power.

In this episode of Fifth Gear Tiff Needell and Karun Chandhok take two high performance saloons to the track to discover which is the fastest, and most entertaining, to drive. BMW have a long history of producing very quick family sized cars, and on paper their new M4 looks every bit as good. By comparison Lexus has never made a car of this type – however their new RC-F seems to match the BMW blow for blow. Three tests will determine which car best deserves its £60,000 price tag. The Bentley Mulsanne Speed is, according to the manufacturers, the fastest limousine in the world. But, being a Bentley, it’s extremely luxurious to. Jonny Smith takes a tour of this £300,000 car, which has a top speed of 190 mph but also comes equipped with Champagne flutes.

Jason Plato is joined by former F1 driver Karun Chandhok to see who will be crowned king of the hot-hatches. The team test the first Mercedes pick-up truck, the X-Class.

Former F1 driver Karun Chandhok returns to battle Jason Plato on the track in two of the most sought-after super cars, the Porsche 911 GT3 RS and the Nissan GT-R Nismo.