who are you insured with? depends on who they send it to be repaired, some body shops have their own courtesy cars, my local has a fleet of 500's the shop that did my old MR2 had a fleet of Fiestas (god i hated that car) some don't and require the insurer to supply a courtesy car.
i know its nice to have a like for like car but don't forget that in doing so it costs alot of money, thhis also pushes up the cost and when added into the costs could possibly push the car into a write off. these kind of costs also push up everyones premiums.