Talk:Research & Development/BMW 3.0 CSL Hommage/@comment-2803:7000:6000:32F:9846:D2A1:797A:864D-20180123065016/@comment-34439815-20180123075854

You need to upgrade hommage before hnd until you reach level 3, where by next levels are token only upgrades. You need to apply those free upgrades to those so that you can save your tokens. Always upgrade credit ones first.