I've just seen the program "Driven" on the Iplayer on her and can't form a proper opinion.
Obviously she must be pretty good to drive at that level but as the film was made by her brother it "could" be biased !
She didn't seem too bad at the Silverstone test and is undoubtedly better that some that think that they could drive one.
OK so money and contacts have played there part but anybody with half a brain would take advantage if they could.
As for Mr Moss he can say what he likes and seeing that he once tried to chat my other half up he hasn't lost all his marbles !