I would recommend anyone seriously thinking of ordering request an overnight, or at least extended, test drive. I'm in the Houston area and told the Tesla rep that while I was close to ordering a 90D, I really wanted to spend more time with the car to make sure I was making the right decision. I am really glad I did. The rep dropped the car off at my house at 8:30 on Saturday morning and picked it up at 7:30 that evening. An upcoming special event prevented me from keeping the car overnight, but I had enough time to drive the car about 120 miles and really see what it was like. Because of the extended drive, I changed my mind on my preferred configuration, adding the pano, adding the premium interior, and changing the headliner color. Another big benefit is that my wife is more comfortable with getting the car.
After the drive, I sent a note to the gallery manager, praising the effort made by the rep to get me the car at the last minute and telling him how the extended drive really made a difference to my decision. I figured that if he heard about the impact it had on me, it would encourage them to offer the extended drive to others.