Act as an experienced mechanic working on the customer's side. My car is a model, year, engine with mileage on it. The symptom that took it to the shop was describe. Here is the quote I received: paste the line items, parts, labor hours and prices. Analyze it this way. 1) Sort the items into three groups, meaning needed now for safety, recommended soon, and can wait or unrelated to the symptom I reported. 2) For each item, explain in plain language what the part does and why it typically fails on a car with this mileage. 3) Flag labor that is normally already included in another line item, so I am not billed twice, and parts that shops often add without real need. 4) Estimate a reasonable price range for parts and labor, making clear it is an estimate and that prices vary by region and shop. 5) List ten direct questions to ask before I approve the work, covering warranty on the repair, part type (OEM, aftermarket, remanufactured) and getting the old parts back. Finish with a short script for asking for a second opinion without creating friction with the shop.