This is probably irrelevant but touched a nerve: When on a holiday in Austria, one of our group had an MI, a car and bike were sent by the emergency services, (despite being 15 I had to act as interpreter as tour guide felt it more important to keep other punters 'happy'). The patient didn't fully collapse until after their arrival - calmmy,sweaty and blue but still breathing and with an erratic pulse. The bike paramedic said that with a full ambulance he just might have stood a chance, but they couldn't get through traffic with them (lots of Vienna still medieval + narrow) - one did eventually turn up, 20 mins after the poor sod died. Nothing you lot don't already know, but unless the car can carry the same kit as the ambulance, what's the point?