Another black saturn astra up for sale in O'Fallon under the Carbondale craigslist:
https://carbondale.craigslist.org/cto/6162424903.html
ETA: listing might be too old though to be relevant, unless the perp just bought his vehicle i guess.
This one is a 2DR and the FBI is reporting the suspects vehicle is 4DR.
https://www.fbi.gov/wanted/kidnap/yingying-zhang
But this is another one eliminated.