There is indeed a roof rack for your 2022 BMW M4 that will allow you to carry your longboards. The rack is from Yakima, and I verified directly with them the parts you need, which are the following:
- Yakima JetStream Crossbars - Silver # Y00428 or Black # Y00425
- SkyLine Towers for Yakima Crossbars # Y53TR
- Landing Pad 25 # Y84FR
You can lock this rack to your BMW by adding lock cores, the Yakima SKS # Y07204. Then to carry a pair of longboards, what you can use is the Inno Board... view full answer...