It is available in ETS2 v1.28.1.3s.

Models preconfigured in a SCANIA dealership.

Includes:

– 1 Skin for SCANIA RS 8×4 (RJL)
– 2 Skin for SCANIA R4 8×4 (RJL)
– Rear mud flap whit logo
– Logo for extensible and heavy loads trailers (SCS).
– Sounds for V8 engines by Kriechbaum.

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IMPORTANT NECESSARY REQUIREMENTS
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MOD Scania R & Streamline Modifications v 2.2.1 (RJL)
MOD Scania 4 Series addon for RJL Scanias v 2.2.1 (RJL)
DLC Heavy Cargo (dlc_heavy_cargo.scs)
Unlocked all accessory levels

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MOD MANAGER PRIORITY
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SCANIA (RJL) CRAM Skin Packs v1.1.scs
Scania R 4-series addon v2.2.1 by RJL.zip
Scania R Streamline modifications v2.2.1 by RJL.zip

Changes made: read the NOTE file inside the package.

Credits:
by Maury, Kriechbaum

https://www.youtube.com/watch?v=IFVmSsDUbeM