Makes some sense if you think about it. 1) Many big car haulers are not Semi's with a fifth wheel trailer, but a truck with a conventional trailer on a pintle hitch (or more likely, a fifth-wheel type hitch mounted low and behind the rear of the truck, not over the rear axle). The weight of 3 or 4 of the cars is directly on the truck chassis, putting extra load on the front wheels compared to a regular semi. 2) a company which has experienced 5 failures would be more likely to contact the NHTSA, than another company which had only had one or two failures. I'd bet that now that the word is out, many more companies will come forward with failure data and this will become a much more widespread issue.
