Guys,
Top tip, if the car has been waxed, then use the open end of the hose to rinse the car and watch the water sheet off.
I have a metallic black M135i and am a keen detailer, after going through my washing regime I use the Air Force Blaster.
Here is a link from a detailing guru on the pros and cons of using a leaf blower vs a propriety car dryer enjoy.
PyRo