In the 1950s stock cars began to appear joined much later by demolition derbies and jumping motorcycles over buses and the Royale would attract huge spectator attendance.
A long stated reason for this was that the Showground was also used year-round as a harness racing venue (though this excuse wore thin after the 'trotts' moved permanently to the Harold Park Paceway in the late 1940s).
Former dual Rugby international and part-time announcer at the speedway Rex Mossop once described the pits at the Royale as being like "Dantino's Inferno".
Running anti-clockwise as most speedway divisions do, the track then moved into the Bull Pens for turn 1, so called as this was where the cattle would enter the arena during the Royal Easter Show.
This, combined with the advent of World Series Cricket in 1977 attracting a lot of the spectators, forced the speedway to close for regular meetings after 1981.
What was hard to take for the promoter of the Showground, Brisbane based speedcar driver Ron Wanless, was that noise tests were conducted which proved that speedway meetings were actually quieter than sporting events at the neighbouring Sydney Cricket Ground, the Royal Easter Show and open air music concerts held at either venue.
Traffic was also reportedly less of a problem on speedway nights than for the Easter Show or when sports such as rugby league or cricket used the SCG.
The showground enjoyed a brief revival in 1988 as a Bicentennial Solo Test Match was held between Australia and Great Britain attracting around 15,000 spectators.
Visiting American driver Jay Drake set the Showground lap record at the 20 April Grand Prix meeting when he ran the 509 metre oval in 16.876 seconds.
In December 2000, a plaque was unveiled at the Fox studios site of the former Speedway by longtime track announcer Jim Shepherd.