550 M Advice needed

[tifosi]

I'm going to test drive a 550 Maranello tomorrow, and being a novice on this model, I wondered if you Ferraristas could offer any advice as to what I should be looking for when i see the car "in the metal". IE How can I tell a good 'un from a bad 'un.

Also the car I ideally want would be dark blue with stone coloured leather and enamel Scuderia shields, so if anyone knows the correct Ferrari colour names for this combo, to stop me sounding like a tyre kicker, I'd be grateful.

Cheers