I've owned a few turbocharged cars without turbo timers. I just give them a few minutes to warm up in the morning before driving away, and drive them easier (lower RPMs) toward the last few miles of my drive before I reach my destination. Then I just give it a couple of minutes to idle before shutting it down. I know the after-run auxiliary coolant pump will handle it and it seems a little too cautious, but that's basically the synopsis of different owner's manuals I've read between VW/Volvo/Subaru on how to drive turbocharged versions of their cars.