I have worked for a digital marketing agency and our main product was dealership websites.
I like this thread because for me, there are some underlying issues.
As soon as you duplicate content like this, it becomes null in terms of SEO, but still serve the purpose if your customer is on your site.
Now, the correct answer would be to generate fresh & perfect 2000-3000 skyscrapers about every single carline & trim, every year.
If ANYONE here tells me the average dealership should be doing this, or is equipped to do this, I will know right away you are new to this business... Or not in it at all.
If you were to leave all pages blank and wait for someone at the dealership to start writing about the team, cars, experience, etc. Website would never go online. I'm not throwing rocks at dealers here, I'm just stating reality.
The reality is that models come and go pretty fast, resources are scarce in the average store & there are a million moving parts. Plus, most DPs or GMs don't understand this and/or don't put value over SEO.
Over the last 10 years, I have met a handful of owners that were way too savvy in SEO, and to be honest, I was worried because I'm sure this can't be #1 priority for a DP.
I'm not saying it's the correct answer to have 520 sites with the same Jeep Grand Cherokee description, but most managers in this business will tell you it's a matter of knowing where to cut corners...