i just saw the commercial for this. i initially thought this was a repost for the episode where they already covered this car, but there is indeed a new episode on Weds where Tiff takes it around the Isle of Mann. (part of the commercial clip has a quote of him saying he is going 170mph!)
on a side note, i have been watching these new 5th gear episodes and.. am i the only one that is sick and tired of them constantly judging cars by doing powerslides/drifting? looks cool and all but it got old a while ago. hold some grip and give me some lap times!