More detailed information from the TG homepage:
---It’s business as usual this week on Top Gear.
We perform a public service by smashing a really big train into an aging French people carrier. Trust us, it’ll all make sense when you see it.
James makes the definitive bid to rid himself of his ‘Captain Slow’ nickname, by attempting to max-out the 252mph Bugatti Veyron at Volkswagen’s top secret test-track.
An A-list Hollywood star comes to our studio and has a ride in our distinctly C-list reasonably priced car.
And Jeremy, Richard and James try to decide on the best small coupe by taking the latest offerings from Audi, Mazda and Alfa Romeo to two of their natural habitats – a design museum and a golf course.---
So James will really try to go top-speed

Seems to be a great ep! Can´t wait to see the king of all cars on its very first top speed test on TV