Hop into the back seat when your Uber or Lyft pulls up?

Well, you may want to re-think that decision, after new research shows back seats of rideshare vehicles are germier than a toilet seat and perhaps more dangerous than sitting up front.

That’s according to a study by insurance company Netquote, which says the average rideshare vehicle has about 219 times as many germs as the average taxi, which is cleaned regularly.

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Analysts say rideshare vehicles are also nearly three times dirtier than the average toothbrush holder, and more than 35,000 times germier than the average toilet seat.

The study found that most germs on rideshare vehicles are on the window buttons and seatbelts.

In terms of safety, back-seat passengers are often killed in head-on collisions in which front-seat passengers survive, according to a recently released study by the Insurance Institute for Highway Safety.

This is due largely in part to a lack of safety advancements in the back seat, such as seatbelts, according to the study.