Shinkansen: Green Car Green Cars offer a bit more comfort, comparing to Ordinary Cars, and are an equivalent of first-class travel in Japan. Nowadays, the Green Cars are marked with a four-leaf clover and are easily recognized.

Whether the "Green Car" (First Class) is worth it on the Shinkansen depends on your priority for comfort versus cost. The Green Car offers a 2-2 seating configuration, providing wider seats and significantly more legroom compared to the 3-2 layout in the "Ordinary Car." You also get a dedicated footrest, a more substantial recline, and a generally much quieter, calmer atmosphere. In 2026, Green Cars are also more likely to have "luxury" features like larger tray tables and sometimes an oshibori (hot towel) service or at-seat trash collection. However, Shinkansen "Ordinary" cars are already exceptionally clean, comfortable, and offer more legroom than a standard international economy flight. If you are traveling during peak holiday seasons (like Golden Week or New Year's), the Green Car is definitely worth the 30-50% surcharge simply because it is less likely to be overcrowded and noisy. For a short "hop" like Tokyo to Nagoya, Ordinary is perfectly fine; but for the 4-hour journey from Tokyo to Hiroshima, the extra space and tranquility of the Green Car can make the trip feel like a genuine luxury experience rather than just a commute.