I voted no, and I'll copy and paste a comment I made on
Roflwaffle's video on the subject to explain why:
Vision GT cars often look comical, almost like a caricature of what a car should look like, and it very much clashes with the ultra realistic look and feel of the game. The Merc VGT for example, has tyres so low profile, they look painted on. The Volkswagen Supersport has no fuel inlet anywhere. Many don't even come with reverse lights or turn signals. Most are set to scrape on their own shadow even on a textureless, mirror smooth racetrack, and with non adjustable suspension, they just spark like crazy and are a bumbling mess on laser scanned real tracks. Oh, and some of these shadow scraping cars can even fit dirt tyres, which should tell you everything you need to know about how much thought goes into these things.
Which brings me to my second point: most of them drive so god awful that it's completely inconceivable to me that anyone test drove these monstrosities before greenlighting them. Back in GT Sport, the Subaru VIZIV will wheelspin in 3rd despite having AWD, and its torque vectoring just instantly spun the car upon turning the steering wheel. Same with the INFINITI VGT. I mean, hell, the Jag VGT gave us the first (and only, if I'm not mistaken) red flag in Gran Turismo history, to give some context on how awful these things are to drive.
If real cars drove badly, it's somewhat easy to excuse: they set it up to be comfortable. They built this to a cost. The technology hadn't been there back then. Etc.. With a VGT car, it exists only in Gran Turismo for the most part. If it drives awful in Gran Turismo, it's because no one bothered to make it drive well, even without any cost or technical limitations. It just feels like lazy slop that exists only for the manufacturer to peacock.
In a series that has traditionally included many duplicate cars and highlighted the minute differences between them, Gran Turismo has really made me appreciate the small, mechanical improvements that go into a car as it ages. Now imagine Dodge coming along and claiming they can make more than 2,500HP from a 7 Litre V10. Chevy saying they can propel a car with lasers. It just feels like a playground fight between children to see who can exaggerate the best. Now imagine those playground kids being given the power to materialise their fantasies. It instantly invalidates any and all of the hard work that real engineers do to satisfy safety, emissions, and reliability standards to bring a car to market. It feels like a direct slap across the face to race these outlandish and improbable VGT cars with real cars.
Back in the earlier GT games, the fictional cars weren't so egregious. The Dodge Copperhead looks like it could be produced and rub shoulders with an NSX, sure. The del sol LM looked hilarious, but it could run with the other LM racecars no problem. The RX-7 LM is actually based on an obscure 15th anniversary body kit Mazdaspeed offered. Even though they were fictional, they had roots in reality, and didn't feel out of place to look at or to drive. That I feel is the main difference between fictional cars in earlier GT games versus the stupid VGTs we have now.
Even if VGT cars materalise, they often don't share much with the original VGT. The McLaren Ultimate VGT uses a familiar sounding V8 engine, features a novel prone driving position, and has my favourite cockpit view in the entire game. The McLaren Solus has none of that. The only link to the VGT program it can claim is just in styling. That just feels incredibly skin deep to me.
As you said in the video, VGT cars aren't for the players. They feel like cheap, marketing ploys at best and being forced to watch Kaz and car manufacturers circle jerk one another at worst.