Scania R & Streamline Modifications is reworked version of ETS2 default Scanias. Contains a lot of tuning parts and more chassis and cabin options.
Fully standalone mod, it doesn’t replace anything. You can find the truck from Scania dealer.

Content list:
-Normal, Highline, Topline, EXC Topline and EXC Longline cabins.
-4×2, 6×2, 6×2/4, 6×2*4, 6×4, 8×2/*6, 8×4/4, 8×4*4, 10×4/6, 10×4*6 and 10×6/4 chassis for all cabins.
-Scania R interior.
-Euro 3, Euro 4, Euro 5 and Euro 6 engines.
-Wide range of R1, R2 and Streamline parts.
-Plastic and paintable chassis.
-Lot of custom and tuning parts.
-And something more…

Changelog V1.3 to V1.4:
-Updated the mod for 1.19 patch
-Improved fuel tanks and chassis models
-Added real fuel capacities
-Added longer 6xx chassis with 3.1 m wheelbase
-Added equipment tower for 8xx and 10xx (not removable on purpose)
-Added 5-series/R1 front grille, bumper and sideskirts + Euro 3 and Euro 4 engines
-Added paintable versions of H7 headlights
-Added secondary interval for windshield wipers
-Reworked cover plates, UV mapping is changed to get more space for future needs (affects for paintjobs)
-Fixed some bugs
-Many other small changes which I don’t remember

The mod is tested in 1.19 without any other mods and it worked perfectly, game.log.txt was error free! Doesn’t work on older game versions.