Interesting design, love the 'flowiness.'
Couple of questions, though.
If this is an ambulance, where does the patient and caregiver EMT\Medic ride? Or did you intend it more as a 'first response' type unit, sent ahead of the transport, basically to check the patient, get first vitals, and package, stuff like that?
Also, love the red and white, works well, but what about lights and sirens? Only way we get there fast usually is our party flashers and whistlers. Sometimes, though, people don't even pay attention to those...
Anyway, awesome design!