Is a cordless handheld or a corded wet/dry vac better for cleaning a car?

It depends on use case. Across the reviewers we read, cordless handhelds win for quick weekly cleanups, crumbs, and easy storage in the trunk, while corded wet/dry shop vacs deliver dramatically stronger suction for embedded dirt, sand, pet hair, and the occasional spilled drink. Detailing-focused subreddit consensus is that serious car cleaners eventually own both.