I have a 1987 Jeep Cherokee. Very good DD, great in winter or rain when I can't or won't drive the Z, and great for hauling stuff, even if the stuff is dirty. I recommend against getting a second performance car as a DD when you already have a Z.
I warn you: extra cars are addictive! I have 4 cars and a motorcycle at my place now. It all started with getting a cheap DD to protect the Z.