1. Make sure seatbelt is fasten. Check
2. Camera strap around neck. Check
3. Make sure there is no lose clothing, sunglasses, or items that the wind can catch adrift. Check.
4. Lean upper body out while securing camera ready for shooting. Use elbow to secure position on the side of the car.
5. Point and shoot away
Of course it was fun taking pics of such a machine because not only does it looked great in motion, it made the most amazing noise that was echoing off the tunnel walls.