It's basically takes a lot of skills..
And you need a speacil set of tires.. standard tires won't let you take of side ways'.. What you need is a bubbly tires as it's called.. the side wall is not straight , it's a but curved which helps in taking the car up gently ..
This is my car on the standard factory tires
Notice how small they are
Now look at thoses tires
And no I can't do what those guys do.. I'm to scared.. hehehe..