From my point of view, I'll support you guys getting a WeatherTech cargo liner. They're very nice and work well. I've had one in all of my SUVs, including my wife's Murano. But my Z isn't an SUV. I do have the Z-logo'd rear trunk mat, and for what few things I carry back there, it cleans up nicely with our monster vacuum cleaner. Carrying some liquids that might spill? Never. I'll just take the Sierra for dirty utility transportation.
Next you guys will be wanting a trailer hitch.
