NHTSA Complaint #11436248 — 2018 BUICK ENVISION

We bought our used buick envision essence in Feb 2021 from Scott Robinson Honda, Torrance, CA with 6,489 miles and 3 month warranty. The night we drove it off the lot the floor behind the driver's seat was wet and we thought it was from the prep (including shampooing the carpet) they said they had to do before we drove it off the lot at 9:00 p.m. The next day found that the matts in front were saturated in gasoline so threw them away. Since then whenever it rains floor becomes soaked each time. This causes windows to always be fogged up because of constant moisture in vehicle creating dangerous very poor visibilty and mildew we have to breath in causing breathing problems. We took the vehicle to our regular auto repair, Encinitas Foreign Auto who checked the moon roof, door windows, windshild and AC system and after hundreds of dollars still don't know where wet floors are coming from. Should not be happening with less than 7,000 miles on it. Buick is now feeling and smelling damp all the time and fogging up windows making it difficult to see. We feel the manufacturer needs to correct this defect on our vehicle as soon as possible. Thank you.