There are many threads re: PPF & or vs. ceramic here - take a look. PPF prevents rock chips, ceramic makes the car easy to clean.
The car's finish is perfected first, then PPF is applied and then a ceramic coat can be applied. Many modern PPFs have a ceramic coating on them.
I'm not aware of a "BMW" ceramic product, but I wouldn't be surprised as they have been selling rebranded Sonax products for decades. It's all down to the application. There are products for the exterior & interior that you can apply yourself.
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2015 BMW 228i in EstorilBlau II Metallic / Terra Dakota Leather - 6-speed manual, M Sport Package, Cold Weather Package, Lighting Package, Premium Package, Harman Kardon premium sound, Anti-theft alarm system, Blue Metallic Matt Accent Moldings, Aluminum Hexagon Interior Strips, Anthracite Headlining
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