[Matteo Venuti]

The differences are

: 


From now, on the left you will have the Tatuus, on the right the Formula Argentina, with every different file in the data folder
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aero.ini



Removed some comments; changed a bit the position of the front and rear wing
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cameras.ini

Changed the position of the cameras
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car.ini

Removed the comments, changed slightly the position and the pitch of a camera, edited the FFB multiplier and reduced the steer assist
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collider.ini

changed a bit the position of the colliders
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digital_instruments.ini


Lots of changes in the file dedicated to the LCD (from what i've seen): Size and color of some buttons, and when some buttons (those for the RPM) will came up (5700 instead of 5900 rpm)
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drivetrain.ini

one less gear, and a different gear ratio
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flames.ini

different position of the flames
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lods.ini

different names of the files (at least this) and different switch from LOD_2 to LOD_3
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mirrors.ini

different names
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modified power from rpms
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proview_nodes.ini (lots of changes, i need 4 or 5 screens for it), it's something related to LCD, steabelts and wheels (maybe rims)
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removed comments, edited numbers and removed spaces
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flames folder

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So, it might be a Tatuus with a different frame

Every other file, like ac_tyres.ini, brakes.ini, damage.ini, electronics.ini, engine.ini, fuelcons.ini and setup.ini are identical. You can use your Tatuus' setup from last season in this car lol

[simracingsystem]

Their starting point was the Tatuus physics yes.
The mod was developed with feedback from real drivers.

Nothing ilegal here.