I'm still at it, but my computer crashed about a month ago. I've got a Trans-Am that's startign to come together and a Pantera I'm working on. Both will be kinda OG Death Race Vibe. I've also got a hold of a Nissan Leopard I will be working into a Farcon replica.
I remember buying that kit because it was clearanced at $5. Got it for the figure mostly. Hilariously it has a decal sheet so you can guild a racing version, which has some usable stuff on it like, Marlboro, Magnetti Marelli and stuff.
These look about mid 80's vehicles to me. I'm no expert, but.... The Cedric was the Japanese Crown Vic, and the Gloria the Grand Marquis. They saw common use as police and taxis. They were never sold in the US.