[tripletdaddy]

Mundy5 made a good point that I hinted at but missed. The cooling system is larger than most vehicles because of the second heater circuit that I was pointing out. That would clearly take more time to heat up than other vehicles, but would eventually get blazing hot eventually as you said. This isn't "by" design like they wanted it to take longer to heat up, but rather a result of the design of the heating system. As you may know, the engine is more efficient at around 200 deg F than at much colder temps, so if anything, designers would want it to get hot as fast as possible not slower.