Squealing Scuderia

[dagsin]

I haven't used the car much over the last few months due to horrendous weather. On the last two occassions - November and early new year I have driven it for 20 -25 minutes and then parked. On restarting 15 minutes later there has been a squealing noise coming from the engine compartment which lasted 15-30 seconds and then went and doesn't return for the subsequent drive. The car was fine to drive and no warnings have appeared. Any ideas as to cause?

[dagsin]

Very helpful. I think the belt is correct as now its been pointed out it sounds exactly like a slipping fan belt on a normal car. I just hadn't thought that simple given the technical complexity underpinning the car. Many thanks