Lol. Walk into any bodyshop and look on the wall:
Body labor: $**
Paint labor: $**
Frame labor: $***
Mechanical labor: $***
Body materials: $**
Paint materials: $**
Outside storage: $**/day
Inside storage: $***/day
Aluminum body labor: $***
Aluminum structural labor: $***
Tesla body labor: $***
etc, etc, etc…
Or my buddy’s shop. He’s an ace diagnostician with a sterling reputation.
Hourly labor rate: $1xx.00
Hourly labor rate (Audi, BMW, Cadillac, Corvette, Hummer, Porsche, Volkswagen): $2xx.00
I'm sure shops exist that break labor down like that, but I don't see them often. I've seen a diagnostic rate and a general labor rate split, but that's all I've ever seen.
You ever heard the phrase "the rent determines the tenant"? If I was your buddy, I'd charge $200/hour for all my labor and try to fill my schedule with that work. Why would I even want the $100/hr work if there's $200/hr work to be had and I'm good at it, tooled for it and have a sterling reputation? Seems to me he's leaving money on the table by allowing his schedule to be filled up with the lower paying work.
I don't pretend to be an expert on auto repair. I worked in shops for several years, my family owns and has operated shops my whole life, but I'm not directly involved. I know how the sausage gets made in our shop, but not everywhere. I'm sure there's always a corner case somewhere with someone waiting to say NOT ME, I'M DIFFERENT. In fact, I left auto repair BECAUSE of the customer and their attitude towards mechanics and repair shops. In repair work, the customer is rarely in a good mood. One of their most expensive possessions has broken, and it's gonna cost money to fix. They're usually highly inconvenienced too, the timing is never good. This rarely makes people happy. And suddenly, the mechanic's shop is the bad guy because they're charging a rate and selling parts at a price that lets them run a profitable business. A price that is almost always agreed upon in advance. And still they get called crooks, thieves and liars. And I'm sure there are some who are crooks, thieves and liars, but most everyone is out to make an honest buck. But because its expensive and most people can't do it themselves, they're afraid of being taken advantage of or somehow the guy fixing your transmission doesn't deserve to make a good living.
I suspect people are all in a knot because they get an itemized bill and see items they don't agree with, but for some reason are ok with the total price if they don't know the breakdown. When I quote a job, I send them one price. I break the job down very granularly in my quoting process, but the customer doesn't see any of that. I just quoted a job today that has hardware, paint, steel, welding labor, machining labor, install labor and some margin for error. But I just wrote the quote up as X assembly, QTY 1 @ X price. They don't need to know what I'm spending on parts, labor or how much of each spent. As long as I deliver on time and within budget all is well. If I go to the mechanic's shop, I ask him how much TOTAL. If he says $500, and I agree with his price, I don't care what the breakdown is. If he buys the part for $1 and charges me $100, I don't care. As long as he charges me the price quoted, he can do whatever he likes for his margins.
In my world, the shop rate is directly tied to how much value you can provide for the customer. If you're not using the machines you bought, why even keep them? It's not like shops buy an expensive tool, let it sit in the corner and never use it but charge more just because they have it. If that were true I'd buy a million dollar CNC and charge $500/hr to drill holes with my drill press. No, I charge what I charge because we actively are busy with the equipment we've bought to do the work we want to do, and anything smaller is a distraction from what we really want to be doing. If I quote $100/hr to weld a cracked mower deck, hopefully they'll go away and we can keep doing the work that we're best at. If I end up welding the mower deck, I at least will be breaking even, but in reality I'm losing money because I'm NOT working on the job that is keeping the lights on and the machines paid for. So, I have to charge everyone the same rate, even if I don't use my CNCs or my big welders or what have you. I have to because if I'm working on your thing for $50/hr, I'm NOT working on their stuff for $100/hr.
So, if I have the tools to be doing high end auto work and am busy with that kind of work, I have to charge the same rate for oil changes or brakes on a Camry because every hour I'm doing a Toyota brake job I'm not doing a high end job for way more money.