They are not racist man. They loved the ZR1's performance, they told ferrari to have a look and learn something from it. The reason why ZR1 did not made it to the list is that quality is crap and its only available in LHD!!
CTS-V was also hailed, but that show is based for the public for a RHD country - No point of having a LHD as the best. It doesnt comes into the right criteria!