So BC. long weekend, we were in Seattle for 3 days. On the I-5 coming back from Everette, I was in the middle lane and there was what looked like the roof hatch of car in my lane. No time to change lanes, and going 70 miles, I ran over this thing and heard scapes as I went over this. There was no damage but what a surprise. I guess this is one of the disadvantages of the X.