For Years the State of Michigan used to record vehicle base prices on their website but recently they took it down. I uploaded the files to the internet archive so people can still access them
Its just years 1984-2013. Its pretty accurate and complete, sometimes a model or trim may be missing. The high-end brands are hit or miss too.
I put all the years for each together in one archive item. Cars and Trucks are separate, trucks meaning pickups and sometimes vans. Minivans its weird some years its on cars while others on trucks, some years both. Something like a subaru baja or chevy avalanche is on cars.
The internet archive is kinda mid on mobile so I might upload these to like google drive or something later.
Cars – https://archive.org/details/1989combca_202604/1984combca/
by BcuzRacecar