I bought my 95 GT in 1998 for $15k with 17K miles on it. Regular maintenance at 3K miles with only mobil1 synthetic oil.
It now has 127K miles and after 14 yrs it needed the auto trans rebuilt.
Motors for both pwr windows and driver seat
needed replacing along with odometer/speedometer gear.
Otherwise gr8 car. No takeoff with stock 2.73
gears. Now have 3.55 its way better. Avg 20 miles per gallon normal driving. Love interior and the cloth seats are comfortable and durable. Still looks new. Backseats fold down allowing transport of long objects. I love this body style and the car is solid and quiet inside.
I recommend buying a mustang for fun and reliability over long term ownership.
Better transmission that can handle the 5.0 HO motor.