Mechanically the F39 is an X1 F48 with a lower roof, and that is exactly what misleads people buying parts. Engines, suspension and underbody are largely common. From the A-pillar back nothing is: doors, rear quarters, roof, tailgate and rear lights exist as X2 parts only.
This model mainly gives up rear lights, aprons, door cards and washer system components. That is the mix you get from a car with parking damage and nothing else wrong with it.
One feature makes an F39 unmistakable: BMW roundels on the C-pillars, quoting the coupés of the seventies. No other current model has them. If you need a C-pillar trim, you need an X2 part, and the U10 that replaced it did not carry the feature over.
The F39 was built from 2018 to 2023.