In the final episode of the series, Extra Gear gets a behind-the-scenes look at how to film a Lamborghini Aventador screaming around a race track. Rory is joined in studio by motoring journalist Vicky Parrott and Rallycross driver Kevin Eriksson to talk everything from the Fiesta ST to the all-new Aston Martin Vantage. Chris gets behind the wheel of the Audi R8 V10 but this one is rear-wheel drive.