taken a bit of time this year, but there's a couple to have a look at -
Classic superbike race here - https://www.youtube.com/watch?v=NazcmMBvoFc

Some "noises" of the Classic Senior here - https://www.youtube.com/watch?v=FI8RqsFFl7I

A quite brief clip of the Honda 6 startup at Jurby, just before my batteries ran out   - https://www.youtube.com/watch?v=trzdtrAlY6g