Did not seep through seam Albert,it just ran over the gap of the side panel and straight at the undercarriage for some strange reason,aerodynamics of a brick me think's.
Another strange one,sat in Spuds car on track in passenger seat and arm on side (exhaust on left side) as to big to sit in skinny seats and twenty minutes after getting out my arm was stinging from exhaust heat and burnt even though we were not going slow,one to watch out for.