Test on the driver's seat

Plus
No annoying rumkullern of empties
Access to replacement drinks while driving quite possible
Holds up to 6 bottles incl. Snacks
Absorbent and still dry
Not Fuselt
Leaves both men and women neat impression

Minus
Sliding off the seat when more than 8 bottles are stored
No insulation bag (drinks not stay cool, especially with seat heating)
No protection against access by passenger