I own a 2018 GT line which I recently started to notice a water leak on the passenger side floor. Seems to only appear after rain, nothing too heavy or torrential (but never when I wash the car).
It’s significant enough to soak right up into the car mats I have. I had a pair of fabric gloves sitting on the mat and it soaked right into them as well. Seems to be coming from the floor upwards.
Any idea what this might be? Anything I can check myself before bringing it to a garage?