Thanks Stephen. It was a properly grim day for it too - I got soaked! Sometimes that's the best weather for photos though.
I don't mind the cars so much. Although they're contemporary now, in a few decades time they'll be of their time and that'll be nice to see in the photo.
I recently chatted with a bloke at the Lincoln Steam Rally who was taking pictures of vintage buses. We both agreed that it was a good thing to keep contemporary vehicles in images as they will serve to date the photograph in future, much as hairstyles, fashions, shop signs etc. will. He said he makes a lot of his income now from selling photos of cars, trucks and buses that he photographed back in the 70s and 80s. At the time they were commonplace and contemporary, now they're classic / vintage / nostalgic.