The width is functional, and it'll probably have at least 325 width rear wheels, they need to fit somehow.
A vast majority of people have been extremely impressed with the new Vette and it's certainly kicked it's stereotypes right out the door with tons of people wanting to own Vettes that would never have considered them before.
The Z06 is going to be real competition for the Porsche GT2 and GT3, and the ZL1 or Zora will be competitive with the GT2 RS.
With the Z06 starting at $80k, it's also a supercar I can realistically aspire to own one day, and will be without a doubt the best bang-for-the-buck sports car that has ever existed.
IMO, people need to experience the new GM performance cars, they are spectacular. The new Vette and Alpha chassis cars are competitive with anything from the Germans or Italians. I can post race results of my stock Camaro SS beating a field of about 20 BMW M-cars, beating Caymans and Boxsters, Audi RS3s, etc. All with a naturally aspirated motor and a manual trans, no farty turbos and no automatic gear shifting.