By switching your car ventilation fan into a vacuum cleaner.
Step 1: A Dirty Interior
Sometimes it is ok to have a dirty car, but one day Freddie Mercury in his 'I Want to Break Free' vacuum cleaner comes along.
So instead of dragging your vacuum cleaner to your car, why not transform your car engineering, ... This concept I developed in 2010 for a contest for BMW AG, the images simulate an idea, it has not yet been set into reality.
Step 2: Switch
Here is the solution, get the hose, plug it in, switch the fan from blow to suck.
Step 3: Stylish and Practical
Back connection and dust bin removal.
A check valve and filter prevents blowing dust into your car interior when the fan ventilation is reswitched.