observation car

US /ˌɑːbzərˈveɪʃən kɑːr/
UK /ˌɑːbzərˈveɪʃən kɑːr/
"observation car" picture
1.

展望車, 展望車両

a railroad passenger car with large windows or an open platform at the rear, designed for sightseeing

:
The tourists enjoyed the scenic views from the observation car.
観光客は展望車からの美しい景色を楽しんだ。
The train had a special observation car at the end.
その列車には最後に特別な展望車があった。