2006 Ford Mustang Cutting out after repair

If you wrecked the front end, depending on how badly, they may have screwed something up at the body shop. Take it back there. If you ran into something, and carry collision, your insurance will (well, should anyway) pay for it. If it was somebody else that ran in to the front of your car, go after them make their insurance pay

Is it the engine or electrical cutting out.? Either way I would call and tell your insurance company this way they know then take it back to the shop. If they chose the shop for you and you don't like them take it yo someone you trust. Don't pay for anything they have to cover it

If its electrical it could be anything from a loose connection to a bad fuse. Maybe even your alarm if u have one. Don't know the details of the damage of your car.