* BMW: (While technically a brand, their models often start with a letter series, some of which start with B.)
* Bentley: (A brand, but also applies to their models)
* Buick: (A brand)
* Bugatti: (A brand)
* Baojun: (A Chinese brand)
* BYD: (A Chinese brand)
There aren't as many individual *model* names starting with "B" as there are brands. Many car brands use letter and number combinations for model names, rather than standalone words starting with B.
