<p>Anyways, I found a trailer of the Season 4 episodes
here, people who criticize Chuggington should be very amused of that, there's some positive pros on those scenes. like what I'm going to mention right now.
</p><p>- More different rolling stock (like Koko's carriage, Speddy's rock loader and the maintenance wagons).
</p><p>- More futuristic tracks (Green tracks, and different tracks).
</p><p>- Jackman, Zack and Hanzo. (wonderful chuggers).
</p><p>- More realistic buildings. (like the Quarry hopper).
</p><p>- Calley's new look.
</p><p>- Chugginers adding ballast under the track, something which was not shown since Hodge and the Magnet when Hodge was replacing tracks and there was no ballast under the tracks
</p><p>More info, just visit
chuggington.com for see the trailer
</p>