the pv1200w vac be neatly package but -lrb- of course -rrb- have a very poor instruction manual . on the other hand , it be a vac and it vac , so who need instruction ? you can only use this product with the engine turn OFF , so there be a decent battery drain issue . if you have a shop vac or some other vac , run a cord to you car and use that . this vac will take minor dust and small particle off the seat and dash , etc. . it will do poorly on the mat and rug , hence the shop vac or a car wash . I be unsure why company make such useless product ; perhaps they actually earn money from they . but better yet would be to make something that can do the job for most car , not just pristine or recently clean vehicle . other B&D; product I own be quite good and do they intended job well . save you money on this one .