Pack oxygen to reach the Media centre. It's a bit of a climb.
Its a love hate circuit for me. Some superb angles as Mike says, but also a real lack of access on some other parts of the circuit.
I always found (and still do) the least stressful way of working an event is to have a plan. Know a few shots you wish to achieve (If it is a new circuit, take a look at other photographers sites to see good shots and then work out where they were taken from) Then plan how you will attack the event. Where you will start the race (do you need a start shot) where you need to get to, to get your other shots and how long that leaves you before ending up (ideally) near the Finish and Podium. Remember to consider where the sun will be during the race.
If you keep to your plan you will find you get what you 'need' and have time to mess around with more creative shots for your portfolio, which when you are in the fortunate position of just shooting an event in general - you have a lot of scope to think outside the box.
I hope all that didn't sound too w***y. Enjoy it and stay safe.