I just added a Curt Class 3 hitch to my CX-5, now I am trying to find a solid platform rack for our two bikes. I am noticing in some of the product images of the CX-5 with a bike platform that some of them seem to put the tires at the same elevation as the exhaust. I have read about people melting their tires if they are too close (vertical clearance seems to be more important than horizontal). Does anyone have any first hand experience?