In an interview with Crash.net, he talks about what it was like working on Top Gear, and some of his other endeavours since.
Some choice quotes include:
We tested all sorts of things from Pagani Zondas down to Minis and the celebrity aspect of it was a lot of fun as well…
and…
There was one in particular, Tara Palmer-Tompkinson, she was really difficult.
Read the rest of the interview here.