Car Vacuum Cleaner

I'm currently using a 26 year old Genie Wet n' Dry vacuum for cleaning out the car & general around the garage/shop cleanup.
While recently visiting my parent's winter digs in Florida, I used an old house vacuum (an old Electrolux) that had been replaced & relegated to the shop.
My parent's vacuum cleaner was 1,000% better at picking up the debris out of the carpet of my car, so I'm thinking of replacing the old Genie vacuum in the garage.
Any thoughts as to vacuums for the garage? Not necessarily a Wet n' Dry type, but I'm open to ideas. I don't want to use the house vacuum for this kind of work.

Any ideas?

Mark