[s-cars] Thermostat choice

[Noah]

My thermostat seems to be failing. It's hard to get the temp into the proper
operating range - too cold, and I've been told this is the mode of failure
for the thermostat.

The question: Which thermostat should I go with?

I was offered a couple of choices, one about 170 and the other about 192. Is
this one of those cars where folks are running the lower temp stats to help
keep it cool in the summer? I did this with some VW's I've had in the past,
but if it's not really an issue I guess I'd rather run the hotter one.