This is one of my favourite car channels.   He has about 1.7 million subscribers and many of his videos get over 100000 views.  While it's hard to estimate his earnings some sites say a rule of thumb is $1.00 per 1000 views.  It's all to do with demographics.  If you had a car channel based on customising luxury new cars the channel might make $7 per 1000 views but if the channel featured flipping $500 banger cars it might make far far less.   So if Scotty's channel keeps on growing he might be able to forget about fixing cars - which according to Scotty he won't be doing because it keeps his mind and body fit!