Josh When I lived in Houston (lots of heavy rains)I and several D owners would chase water leaks. For one leak with symptoms similar to yours we found water actually coming in at the door seal where the curve begins at the area of the light switches. The water would run down the channel and come in under the seal at the curve and accumulate in front of the seat. This was especially true if a seal was rotated or replaced. A generous amount of black silicone under the seal for about 5 or 6 inches before the bend and at the bend stopped the leak every time. The other leak sounds similar to ones we had when the drain to the outside near the fuel pump cover would get blocked. The water would fill up in the drain space until eventually the water would spill into the air intake and then all over in the car. Usually out the air feed at the fan motor that would of course eventually screw that up. There is a DeLorean bulletin about finding leaks that is in one of the manuals that DMC, Grady and others have available. That is a good help also. Have success, Harold McElraft 3354