videos in AudioSet
A list of about a million ten-second YouTube clips, each labelled with the sounds in it, that Google published in 2017. Labs use it to train and test general audio and music models.
Including 1:8 Gas Nitro .28 engine 4WD RC Monster Truck, ARPRO Radio Control RC ESC Brushless Motor Super fast Boat, Radio Control 51" Hugh Hydro Boat 26cc Engine Racing Boat