That matches the 1953 original.Theres a wiki page on this video, https://en.wikipedia.org/wiki/London_to_Brighton_in_Four_Minutes
It reckons the music is called Sabre Jet, by composer David Hart (real name William Granville Chapman). iTunes carries the track under those details.
Absolutely, I think the sound effects make it miles better also.A full-screen/stabilized copy of the 1983 version (uploaded by RollsRoyce) attached below.
This has always been my favourite of the 3 London to Brighton films, not just due to the prevalence of BR Blue & Blue/Grey, but the sound effects used whenever passing through stations/tunnels, under bridges/other structures and past other trains. And the music ofc, which to my ears at least, is BBC Radiophonic Workshop through and through.
Indeed, very much of it's time as a result, but all the better for it. In my opinion at least.Absolutely, I think the sound effects make it miles better also.