I too have been blown away by the v1.5 update. I had higher hopes for Black Cat County, but I would never complain about something that was totally free. There's nothing inherently wrong with the layouts, and I'm not even sure what I was expecting, but I wasn't giddy after driving the three layouts. Hey...no one is forcing us to drive the layouts. As many have said, Kunos needed the BCC layouts for manufacturers that are presumably using Assetto Corsa PRO. Kunos didn't have to give us the track. I'd rather have it, seeing as it was free, than not have it at all. Who knows? In time, perhaps I'll find myself driving it more often.
I haven't gotten a lot of hours on v1.5 yet thanks to my TV deciding to die on Friday. At least I now had an excuse to get myself a 4k UHD TV.
But, with the time I have spent on v1.5.x I really love the Tire Model v7 and it's so nice to have all the official cars on v7 tires. I don't know if the changes to aerodynamics is affecting downforce, or if it's the tires, but driving the Ferrari 458 and F40 on semi-slicks felt grippier. It could be placebo. I'll need many more laps to see if I'm improving lap times across a range of cars before I can conclusively say I'm experiencing more overall grip.
Sadly, I wasn't completely blown away with the Corvette. There was such a long wait for this car - I was so excited for this car - perhaps I created unrealistic expectations, but I don't think so. The performance numbers are fine, I guess, but I'm not in love with the interior sounds. And the throttle feels weird. Now, I don't have a clutch or stick shifter, so I'm forced to use the 'paddles' of my DFGT and that really blows when a car is designed as a standard transmission, but not all manual transmission cars feel like this Corvette does. Fortunately, I was greatly impressed with the Mustang which I found shocking. I am definitely a GM guy and not a Ford guy IRL. That 'Stang is going to be receiving many miles in the future... 👍