Anecdote warning as well... Same with my somewhat local (UK) Porsche dealership. They've been stellar over 4 years of looking after me with a 10+yr old car. The

Anecdote warning as well... Same with my somewhat local (UK) Porsche dealership. They've been stellar over 4 years of looking after me with a 10+yr old car. They typically give me a cost and say it might be a bit more in labour if the job gets difficult/complicated (rusted bolts shearing, etc.), but give me an upper limit. I totally understand that from an engineering point of view. Sometimes, old rusty shit just breaks. They've still come in under the initial quotes pretty much every single time. I've actually spent less on maintenance of the car than I did on a previous Ford in a similar time period. I now just trust them as they've always been honest with me from day 1. They've always got the work done within a day and if they think it's going to run over, they give me a loaner no questions asked and tell me to come back at my convenience in a few days time. Conversations typically run along the lines of "I talked to the mechanic who saw your car last time and he's confident on his time estimate. He's suggested doing x while he does y, as it's really only going to be a parts cost as he's stripping x off in the process of doing y, and it'll need doing in x months anyway, but it's up to you". Anything they want to raise to my attention, they send me a simple clear video with a mechanic clearly describing/visually highlighting the problem(s), how long they think it's safe to leave to be fixed and have an open discussion with me about what I want to do and when I want to do it. I literally can't fault them. It's certainly dealer specific - I researched where to go on a UK car forum, and found out the nearest dealership seems like an absolute shit show of basically scamming customers, so I travel a bit further out and haven't been disappointed (yet).