Fifth Gear - Season 12, Episode 5 Available Season 12, Episode 5 — Originally aired on October 1st, 2007 * Shootout: Vicki drives two Audi TTs — one with a manual gearbox, one with the semi-automatic double-clutch S-Tronic system — to see which is quickest around a track * Fifth Gear puts fuel additives to the test to scientifically see if they really do improve engine performance or not * Tom Ford drives the brand new Fiat 500 * Tiff takes the £225,000, 224 MPH Gumpert Apollo out on the track * Jason goes offroading in the latest Bowler beast, the Nemesis * Jonny meets up once again with the owner of the world’s fastest street legal car, a Vauxhall Victor named “Red Victor 1″, to see if they can break the quarter mile record