I wouldnt have an issue with the name. 'Top Gear' has been used as a phrase before the show started to describe, well....the top gear (and also good quality drugs....i'm led to believe ! as in why is Amy winhouse like Jerremy clarkson ? They are both on top gear!)
As for the look, it is simple and classy but the only issue i would have is it looks like many other websites ive seen (i dont want to use the word cliched as it has too many bad conotations and you site is not bad at all). If i were looking for a photographer i would be looking for a bit more creative design input from the artist, someone who shows their creative flair when advertising themselves. This style may work for images of classy cars (i dont know, it's not my thing) but i would guess that if that is the case then your Audi image would need to be a real cracker (the grill looks too dark and the overexposure smothers the audi logo). Also the thubnails on the other pages dont really do it for me. They look plonked rather than presented, which would be fine, but your images are of classy vehicles and i presume your clientelle will be quite particular about style.
This is a novice guess, but i reckon that to have a succesful photo web site it needs to be either highly and originally creative or to display very high quality images, or preferably both.