Whilst I am totally with you on the Davina issue, although I think handcuffed and blindfolded on a live fire range would be much more fun, I see Guy Martin as primarily harmless, like a modern day Fred Dibnah
I think his enthusiasm for all things mechanical is great.
A lot of people in the media know virtually nothing about the subjects they talk about,which is one of my biggest bugbears.
Davina McCall on the other hand,gives me the right hump.