I don't think you'd get a response in its current format, to be honest. Oppo at least looked like a blog when he tried to do that, and I think it was still when it was oppositelock.jalopnik.com.
Either way, I don't recommend it unless there's someone kind of tamping down on that stuff. What makes press cars not a big grift is that they're work. You write a review and give an honest evaluation of the thing. It's not a perfect thing per se (life happened and got in the way of reviewing a couple cars I had out last year, for example), but that's generally the gist. There's at least social media posts of whatever I get nowadays, too, FWIW.
If Oppo opens back up a blog and it's getting decent traffic, I wouldn't mind if it so long as someone here is keeping an eye on what folks have gotten to review, if they've actually reviewed it and if they're doing right by whatever PR-type they've been in touch with. You don't want to gargle OEM balls or anything, but you do have to keep in mind that it's a working relationship, and be fair to the dudes you're interacting with. Base criticism of the car itself in honesty and only anger folks for good reason, in other words.