Do you win against them? I get absolutely toasted why I try it
I am usually past them all before the end of the first lap/start of the second lap. I don't have any footage of FM6 atm, but I do have a couple of replays from FM5. As I said in my last post, this exact same issue was discussed for FM5 when it first released also. So I will share a couple of my SP race replays from FM5.
Obviously there are more cars on the track in FM6, so that will play a part that was not in FM5. But it is still relevant to a point.
I think some of the issues come in to play because of the way the auto upgrade system and drivatars work in general. The auto upgrade system heavily favors speed builds, so they will generally have a high top speed, and not so many handling upgrades. On tracks such a Bathurst and le'mans for example, those cars will be very quick in a straight line.
The drivatars do not use our own tunes, so I would speculate they are using the auto upgrade system for their cars. Hence why not all of them are at the full PI range for a particular class you are racing in. Most players tend to favor handling based builds, with more of an emphasis on handling over speed. And can often tend to stick with just the one build for all tracks. Basically, a good all rounder. On faster tracks with long straights however, they run the risk of getting stomped by the Drivatars.
Player skill also comes into it as well, but don't take this as me saying that the people having issues are rubbish at forza. That would be just dumb on my part. What I mean is, is how consistent a person is. Which is a skill all on its own from been able to drive quick. If you can not put down almost identical laptimes, then that allows other drivers a chance to catch up. Doesn't matter if it is AI or a real person.
There is the fact though that through T10's tweaking of the drivatar system, they could have inadvertently created an anomaly in FM6. So this could be a genuine issue in this particular iteration of the game. T10 are looking into it, so that is a good sign that if there is a problem with the game and the drivatar system, that they will find it and fix it.
personally though, I find the drivatars slow in the corners. They brake way to early, they brake mid corner, they even sometimes brake on a straight. It can make it an awkward experience when racing against them. This issue was also in previous forza games, and I think it is something that got carried over. The drivatar system as always been in use in Forza, and was a big selling point of FM1. They have just dressed it up a little for FM5+, and allowed us to download other peoples drivatar data from the cloud. In FM1, this was also possible. But you had to have your friend either send you their drivatar data over the internet, or they had to physically bring it over to your house. Though you could only race their drivatars in one mode in the game. You could also have your drivatar race for you if you wanted, though you got less credits then you would if you raced yourself. The latter feature was also present in FM2 and FM3. I am not so sure about FM4 though, I would have to set up my 360 to check if AI could race for you in that iteration.