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If you look in detail at what the AI cars and drivers are doing, quite often you can see that things are not 100% credible. Just as in real-life racing, if you follow an AI car, you should be able to spot where he's fast and where he's slow, and plan your overtaking manoeuvre accordingly. But if the AI are turning in realistic lap times (see below about tuning speeds), then it's obvious that if they're faster than they should be on some parts of the circuit, then they are going to be slower on other parts. So, as you've found, the AI speed on some straights can seem impossible to replicate. Also, they don't use setup data in the same way that player cars do (including gear ratios). They can drive the first lap off the grid faster than a human player can because they don't have to put up with cold tyres. It's true that the simplified physics model for the AI cars doesn't take any notice of tyre temperatures. Some people say that the AI cars 'cheat'. The AI system in GPL takes all the general numbers from the 'driver.ini' files (for each mod) in the GPL directory, combines them with data for each individual circuit stored in the 'track.ini' and '*.lp' files in each track directory, and comes up with its 'best guess' as to how the AI cars would be driven by each driver. If they tried to model all 20 cars on the grid with perfect accuracy, the average processor back then would have melted! So they came up with a system which is, in effect, a simulation within the simulation. Back in 1998 when GPL was released, PCs were far less powerful than they are now, and Papyrus knew it would be impossible to create a sim where all AI cars on the grid were running the same sophisticated physics engine as the player cars. The speed at a given RPMs and gear is always higher for the AI, and I've tried this while carrying almost no fuel to make sure it's not a weight issue.ġ) What is your experience with the top speed of the 65 Lotus 33, especially at Monza?Ģ) Is there any way to find out what setups the AI cars/drivers are using?ģ) What do I need to do to get my 65 Lotus 33 to be as fast (car wise, not driving wise) as the AI cars?Īs Kartm says, the AI cars in GPL don't 'play by the same rules' as player cars. I've tried some downloaded setups for the Lotus 33 and still haven't gotten anywhere near the top speed of the AI Lotus 33. The top speed of the AI car may not be quite as significantly faster, but the speed at many points where we are going 'flat out' is higher. My Lotus 33 (default setup), 4th gear, 10,000RPM, 133MPH What do I mean by the AI being faster? I watched the replay of qualifying and I can see, for example:

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I don't know of any way to figure out what setup each AI driver is using otherwise. But I figured that the AI would also use the default setup.

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From what I've read, the default setups in the '65 mod are not ideal (using some of the same settings as the 3.0 liter 67 cars instead of setting optimized for the '65 1.5 liter cars). What I found is that the AI Lotus 33 is much faster than my car (using the default setup). I used the replay and replay analyzer to try to learn where I lose so much speed. In qualfiying at Monza, after setting the AI Speed to 1.0, I was the slowest qualifier. I figured this was a starting point and that at least I would have the same setup as the AI cars of the same type. What I didn't expect was that their cars would be simply faster than mine!īecasue I've never learned all the details of setups and I've found that hotlap setups from others are sometimes hard for me to drive, I've been driving with just the default setups from the '65 mod. Of course I expected that it would take me a while to get to their level of driver expertise (if ever).

I just lowered the AI Speed to 1.0 in order to face the AI drivers at their 'best'. I'm currently exploring the '65 mod and have been using GEM+ to adjust the AI Speed so that I can compete in races as I get better.

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I've discovered the mods and GEM+ and other ways to make it more enjoyable. I find myself playing GPL again and I'm trying to stay at it this time. Using the original 67 cars, I would drive for a while, get frustrated and stop.only to pick it up again months or years later. That's not to say that I've enjoyed it every step along the way. I've owned GPL pretty much since it came out in 1998 and I've always felt that it is one of the best sims out there.

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