Z is more than just a letter to a dedicated fan base of car enthusiasts, my family among them. My Uncle Robert (known as Unc) owned every model of Z, except the 260, until he died of cancer in 1997. His blue-on-blue 1990 300ZX 2+2 now sits in my garage and my kids ride in the back seat like I once did with Unc behind the wheel. The Z lives on with…