Ok, first one comment - the
Ok, first one comment - the episode you're referring to, with Martin Kemp and Jeremy in Detroit and the end of Black Stig was actually the first episode of Series 3. It wasn't Series 2.
And if you want to see stiff performances, you should watch Series 1, with Jason Dawe (who James May replaced).
I will agree with you, though, the earliest seasons are a little 'off'...it's obvious that everyone involved is still trying to get the hang of what works (but there were still some really good moments in those episodes). Don't know if I'd call it the worst car show but you are entitled to your opinion.