Sticker shock

Maybe I'm out of the loop, but I thought the hourly labor rate was based on a combined cost of service, not what the mechanic gets paid. Since they are not billing based on the time the service adviser spent, the time the parts dept spent pulling the parts, the time the cashiers spent, the cost of the service bay rental, the cost of the electricity to run the compressor and lights, the"free" car wash, the paper mats and plastic seat covers, etc., etc., etc., they use a generic labor rate which was designed to be all inclusive. It's the "shop supplies" charges that is the real profit center as those generic items were already calculated in the generic labor rate.