The sales person was nice and helpful But there are certain things about the car that I was not told about, which I discovered after leaving the dealership

The sales person was nice and helpful But there are certain things about the car that I was not told about, which I discovered after leaving the dealership. According to Valey Car Wash people, the back seat was covered in blood. The car also has a weird smell that will not leave even after deep cleaning. The Salesperson does still engage my concerns, which is good