This is the 7967th most frequent French word.
subaru
"Subaru" is not a French word; it is the name of a Japanese automobile brand, derived from the Japanese word for "Pleiades" (a star cluster).
In this sentence, 'Subaru' is used as a proper noun referring to the car brand, and it functions as the object of the verb 'conduis' (am driving).
Je conduis une Subaru depuis dix ans.
I have been driving a Subaru for ten years.
Here, 'Subaru' is used as the subject of the sentence, representing the manufacturing company, performing the action of the verb 'fabrique' (manufactures).
À mon avis, Subaru fabrique des voitures fiables.
In my opinion, Subaru manufactures reliable cars.
In this usage, 'Subaru' is the topic or theme of the discussion in the sentence, introduced by the preposition 'de' (about).