I have a 1989 Volvo 740 with sunroof.
In the last year or so I noticed that if the car is out in a long rain, a pool of water starts to form on the floor of the left-rear (driver-side back seat). It can get to 1/2" of water or so!
Anyone know what might cause this? Is there some drainage thing from the sunroof that's not diverting properly?