I think this ad was filmed in Bristol. There is a bit that looks like Christmas Steps and another bit that looks like Clifton. Looks good in black and white! Hope this helps,
Dennis
I can answer you definitely because I was involved in the filming of it. It was made in and around Queens Square Bristol by "gorgeous" productions. We had a great day on the shoot and the classic car used had it's wing mirror knocked clean-off by the camera-man walking backwards whilst filming the actor approaching it!