seines Wagens

of his car

→ sein
phrase Rare #42,891
of his car Used to show possession; seines is the genitive form of sein, and Wagens is the genitive form of Wagen.
GE: Die Farbe seines Wagens gefällt mir.
EN: I like the color of his car.

Tom hat immer ein Fernglas im Handschuhfach seines Wagens.

Tom always keeps binoculars in the glove compartment of his car.

Tom fand auf dem Vordersitz seines Wagens etwas.

Tom found something on the front seat of his car.

Tom hat sich den Kopf am Dach seines Wagens gestoßen.

Tom hit his head on the roof of his car.

Tom hat ein zusätzliches Paar Schuhe im Kofferraum seines Wagens.

Tom has an extra pair of shoes in the trunk of his car.