A long time back I had ProClip send me out some clips specifically made to fit the Ford Mustang. The way the clips mounted meant that the holder for my iPhone fit into the car just like Ford made it. I loved the clips and the company makes them specifically to fit just about any car on the market today.
ProClip has announced that it now has holders and docks specifically made for the Droid X that will connect to those vehicle specific holders the company makes. The new Droid X mount can tilt and swivel for ideal viewing and has an integrated 12V charging cable. That charging cable is hardwired.
One of the best features of the Droid X mount is that you can adjust the mount to hold the smartphone in a case or with a skin on. The iPhone mount I used did not adjust and I had to take the iPhone out of the case each time I got into the car. The Droid X holder is available now.