Motor racing is like one big family, ultimately, and when you come back to it, that's really what it feels like.

I think social media really is a great tool. It fascinates me when I tweet something and right away you get a response almost immediately.

I will always enter a race car from the left side. Always. Why? I have no idea.

If things don't seem out of control, you're not going fast enough.

From the driver's standpoint I had the same horrors, the same satisfactions, the same everything. The speed is relative. It's faster and things are happening quicker, but you have the equipment to handle it.

Speed takes a little bit of getting used to, but rules have to be followed. At any speed, the more you run, the more you get used to it.

The United States is the only country where a driver can have a successful career - either in stock cars or IndyCar - and he won't need a passport.