Which brand corresponds to the abbreviation "Suba"?

The abbreviation "Suba" corresponds to the brand Subaru. This connection is based on common linguistic shorthand used in automotive discussions and amongst enthusiasts where names are often shortened for ease of communication. Subaru is a well-known Japanese automobile manufacturer recognized for its all-wheel-drive vehicles and reliability.

The other brands listed do not share this abbreviation. Nissan is a different automobile manufacturer entirely, with no direct ties to the "Suba" nickname. Saturn, which was a brand under General Motors known for its compact cars and innovation in the 1990s, also doesn't relate to Subaru. Plymouth, a brand that was part of Chrysler, is similarly distinct and doesn't link back to the abbreviation at all. Thus, the clarity of the abbreviation and its established use in reference to Subaru makes it the correct answer in this context.