Volvo Repair: s80 volvo, s80 volvo, dangerous position

Question
My 2009 s80 volvo hesitated to start yesterday and then died about 300 feet after I started to drive it.  I could not restart it.  It was towed on a flatbet truck to the dealer, where they diagnosed that 5 cylinders had misfired.  After resetting the computer they can't find anything wrong with the car and it seems to be driving fine.  I am scared to drive it, thinking that this dying problem could recur and leave me in a very dangerous position.  Any suggestions?  Thank you so much for your time.

Answer
Debra, since its a 2009 and you have on call, I wouldnt be afraid to drive it.  If it breaks, then call the on call number and have them tow it to the dealer.  Its their responsibility to fix that car.  If no, call the Volvo hotline and a service rep will be in contact with you.  As far as ideas, I dont have any since this car is totally computer controlled. I would have to scan the car to determine what the problem is.  Roger