As we all know, the road to the top for a driver can often be a very slippery slope. How many times have we seen one small mis-step end a very promising career? - Just like that.

How do you know when it's the right time to move up? And when you need a little more seasoning?

To find out, we've assembled an all-star panel of drivers - headed by the Chairman of the Grand Prix Drivers Association - Alex Wurz.

I think you'll find their observations very enlightening.