What is the BSW on a Nissan?

Excuse me, could you please clarify what you mean by "BSW" on a Nissan? Is it a specific model, a feature, or perhaps an acronym for something related to the vehicle's performance or specifications? If you're referring to a technical term or a specific component, I'd be happy to provide more information if you could elaborate further. Alternatively, if you're looking for general information about Nissan vehicles, I can certainly assist with that as well.