Just noticed today that behind both seats where there would be rear floor mats if the car had a backseat is soaked. The carpets are dry in the front. Does anyone have an idea of where the water could be entering? Both door seals leaking or maybe entering from underneath car?? I did have both door seals replaced years ago due to excessive wind noise.

 

Most likely could be your rubber seal around your rear hatch door that is cracked or deteriorated letting water in ???