It's just like any thing else, order99; practice long enough and you'll get better at it. My gradeschool teachers are bald from pulling their hair out, trying to get me to stop turning in homework covered in doodles.
One teacher even suggested to my mother that I may need counseling because of all the WWI dogfights I depicted in the margins of my papers.
Twenty seven years later and I'm still at it! Bwah ha ha!
Anyway, here's a four-wheeled vehicle.