This guide is part of the Car Mechanic Simulator 2021 most commonly asked questions. Here, we will be giving you the answers from the community.
What does increasing a part’s quality do? I scrapped some junk and upgraded a few things to 3 stars, but it didn’t seem to do anything meaningful to the parts. Tuning stayed at 0%.
Upgrading performance parts add a bit of performance but that’s it. Non-performance parts are a waste to upgrade. This means that if you upgrade on the tuning part, you will gain more % of tuning. This is also used to make a better profit when you repair a car from the Junkyard or barns for example clutch on 3 stars is doubled price when selling it.
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