Mail Sport's racing expert Robin Goodfellow delivers his tips for Friday's meetings at Newmarket, Redcar, Bangor-On-Dee, Ayr, Haydock, Lingfield and Royal Ascot.
In YouTube footage, the truck can be seen leading the horses round the track to start the race before the announcer shouts: 'There they go!' Around the same time, a crashing sound can be heard off-camera.