According to a study done by CloroxPro, when asked drivers believe the steering wheel to be the one with the most germs followed by the driver's door handle and the gear shift. Although those answers make sense, they are all wrong. None of those are the most germs.
It's the places you wouldn't think.
Swab tests found that the germiest spot is the driver's side floor mat. It makes sense if you think about it. Plus, some people's mats are covered in crumbs, old french-fries, and dirt. Yuck!
And the second dirtiest spot int he car is your cup holder and the third is the inside of your trunk.
I still wouldn't eat off the steering wheel.