I just drove my boxster about 400 miles. I pulled into the garage and when I shut it off, coolant poured out behind the right rear tire.
There were no warning lights and when I was driving, the temp never got over 180.
I added coolant to the reservoir and idled the car. No more coolant came out.
There was no coolant under the trunk liner and no visible moisture in the engine compartment.
Now I am not sure if I should drive it.
Update: I just got the harbor freight pressure test kit. I got it up to 15psi and it held. No leaks in the trunk or on the ground