great pics! In the seventies I was a member of the Aintree Model car racing club, we had a 4 lane purpose built track, and raced against teams from Southport, Fyle, Blackpool, Bolton etc, it was really good, very fast, cars where brass chassis, and various designs depending on the class.
I recently tried to find out if they where still going, but it seems the ECRA ended, and a more scale like racing took over, with cars similar but far better to scalextric, very detailed and have to be correct in colour schemes etc