Beware of major repairs being rediculously expensive!

My car needed new head gaskets. When their $3600 estimate (including water pump, timing belt and clutch) morphed into $6000, I paid to have it towed elsewhere. Local shop put in new engine, all above work, etc for only $2700. The service manager was polite, seemed reasonable, but their logic very flawed. They are also charing me for extra work I never requested, authorized, or even knew about until they sent the bill. Though I'm sure their shop is fine for basic services, drive, tow or haul your car elsewhere for anything major! I just wish I would have done so sooner.