OMG When I had my CZ 160cc (with air filter pipe removed, that was loud to most people's ears), a Black Shadow pulled up alongside me at a junction in my village. THUMPTHUMPTHUMPTHUMP couldn't believe it was at idle, sounded gorgeous. Anyway, the way was clear, he flew up the road and I revved the nuts off my CZ - couldn't even hear my own bike till he was 100 metres away, no joke! I've wanted one ever since!
I also liked this story cause it means some of these bikes still get used how they should, it's sad when you go to a bike show and there are hundreds of perfectly good rideable classics that don't ever get used