This is my second black GM car, granted separate years apart so the paint chemicals are different but my 2006 (build date 2005) Pontiac G6 still looks like it is off the showroom floor and it's close to 8 years old. Hand-wash your car delicately and take your time and the paint will stay great for years to come. My Camaro and G6 I usually alternate every other week for washing, then once a month or depending will do a wax.
Just like everything else with your car, take care of it and it will last
