PhillipDeFranco, ChrisFix and Donut Media (And their "Up to Speed" Series).
Philly D for my news and I've been watching him since the beginning
ChrisFix for all my DIY Car Repairs and Modifications! (110% Recommended)
and Donut Media to keep me up to speed with the Car World and teaching me new things
P.S. I forgot to mention "Engineering Explained" or something along those lines. Extremely smart dude and he scientifically breaks down car mechanisms, how Turbo works...just how cars work in general (e.g. Aerodynamics, Physics, Weight distribution, etc.)
And to think I didn't know anything at all about Cars a year or two ago - wowow