Not to be pedantic, but this is the Aston Martin Vantage GT3. The major difference is that this is the Aston Martin Racing (AMR) factory-built GT3 class race car used in the Super GT GT300 class along with the IMSA GTD class and others that use the FIA GT3 ruleset.
https://www.astonmartin.com/en-us/our-world/news/2024/2/12/state-of-the-art-aston-martin-vantage-gt3-spearheads-new-era-in-top-flight-gt-racing