Porsche 911 — Years to Avoid

Main issue: CAR HEATING SYSTEM CUT OUT. I WAS DRIVING ON A HIGHWAY AT BELOW FREEZING TEMPERATURES AND THE HEATER SYSTEM DIED. NOT HAVING HEAT, THE WINDSHIELD FOGGED UP IMMEDIATELY AND COLD RAIN STARTED FREEZING ON THE WINDSHIELD REQUIRING ME CONTINUOUSLY CLEAR IT WITH WASHER FLUID UNTIL THE CAR RAN OUT OF WAS