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Ever since I discovered this lap time simulation software OptimumLap, I've been creating cars and adding new tracks, to see how they align with real lap times. This is my idea of fun. 😁

Now it's gotten to a point where I have a pool of 48 cars and 60 tracks (10x NA, 33x EU, 10x UK, 5x Asia, 2x Australia) and I feel like it would be a shame not to share this. Perhaps you will find it interesting as well.

Where possible, I used real dyno graphs and manufacturer's aero stats (Sport Auto magazine is a great source of these). Sadly, there's cars like AMG One and F80 with very limited data, where I had to freestyle it. That meant a lot of guess work. So just keep this in mind.

The way this software works, you can't really simulate complex hybrid powertrains or active aero well enough. I mostly worked around this by tampering with longitudinal friction coefficient to improve traction (but inadvertently also affecting braking performance, so I tried not to over do it).
You can poke holes in the numbers all day long. It's supposed to entertain curiosity, not produce relevant data.

Now to explain the results list...
1758721866894.webp
  • The number to the left of a track name is a correction factor for all lap times per each track.
    Typically the slower, more twisty tracks need speeding up, and vice versa.
  • The number above each car name is the coefficient of friction of tires.
    The simple cars have identical longitudinal and lateral µ. The AWD, AWD hybrid, or airbrake equipped cars have these stats split to manipulate the results.
  • Bellow car names is the average lap time for all the tracks, and bellow these there's difference to average reference lap time (production lap record holder or alternative).
  • The little black triangle in a corner of some lap time cells signifies an existing real lap time reference.
    A note pops up on mouse hover over the cell, showing details.
    1758726256469.webp
All lap times are color coded:
🟣 faster than GT3 (or alternative) reference
🟢 faster than production reference
🟡 matching prod. ref.
🔴 slower than prod. ref.

The 20.8 km Nordschleife is the only track in the list which is calculated using the 24h layout and Nürburgring GP layout, given that it would be near impossible to edit the existing N24 OptimumLap track file into the 20.8 km layout, or create one from scratch.

Onto the stats list...
1758722825576.webp
  • power and torque are to the wheels
  • car weight includes 100 kg worth of driver and fuel
  • Vmax is mostly limited by engine revs, or in rare cases, drag limited
If you want to sort the data, you'll have to make a copy of the spreadsheet on your google drive and go from there.
Please, try resist the urge of telling me this or that stat is wrong (I know it is), unless you actually have accurate data.

Here's the link to the google sheets

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