Much of the floor stampings are similar to the Cadillac ATS coupe, which shares the Camaro’s Alpha platform, but there were a lot of changes made during the Camaro’s development. For example, the suspension cradles could swap between the two, although the suspension links are longer on the Camaro because of its increased track width.
This should put to rest any beliefs that the Camaro is based on the CTS version of the Alpha.