2018 Series refers to the fourth range of 72 vehicles released in blind bags throughout 2018.
The Classics theme refers to the characters in their normal liveries.
- Yong Bao
- Troublesome Truck
The Robot theme features characters in gears and mechanical designs. The items are re-releases from 2015.
The Dino theme features characters with dinosaur bones and fossils. The items are also re-releases from 2015.
Back to School
The Back to School theme features characters in objects associated with school.
The Pop Art theme features characters painted in funky pop art designs.
The Monkey theme features characters dressed as monkeys.
The Fruit theme features characters as different fruits.
The Camouflage theme features characters in designs representing camouflage.
Neon Splatter Paint
The Neon Splatter Paint theme features characters with colourful neon paint splats.
- Neon Splatter Thomas
- Neon Splatter Percy
- Neon Splatter Edward
- Neon Splatter Stanley
- Neon Splatter Hiro
The Fantasy theme features characters as magical and mythical creatures.
The Tootsie theme features engines in the colours of Tootsie Roll Industries candy wrappers. All of them are re-releases from 2016. They are only available in the U.S. and Canada.
- The Australia checklist in 2018/2 contains Classic Millie, but she is not in the 2018 Series.