I decided to wash the Z3 today. It's been about 2 weeks since I've driven it so the battery was dead - not even a light on in the car. I obviously didn't fully latch the trunk when I closed it. Luckily, I have a battery charger so I hooked it up and took the 323Ci to the gas station to fill it up. By the time I got back, the Z3 turned over - and I even remembered where the code for the stereo was!
On the positive side, I took it out for a drive to charge the battery. I stopped at Trak Auto and picked up some Mother's Back to Black. It is fantastic! I noticed when I was washing the Z3 that the windshield washer covers on the hood were faded. I've never liked the effect of Armorall as it ages & gets white. The Mother's really seems to work well.