From some days I noticed that when I do long trips my ZR2 leaves a leak under the engine area when I stop, I checked it and found out it's water but no water is missing from the radiator and everiything is working good. I guessed it has something to do with air conditioning, could it be?

 

If it is warm outside then the a/c will sweet. Slow drip behind the pass tire about 1-2 feet from the edge.