Halloween Series (2022) · 1/51/5
Halloween Series (2022)4/5 · 20224/5
Illustration · have this car? Upload a photo belowHDH77
Halloween Series (2022) · 4/5
Hot Wheels What-4-2 2022
The Hot Wheels What-4-2 was released in 2022 in the Special lines line (Halloween Series (2022)), toy number HDH77.
- 2022 · Special lines
- HDH77
- Toy #
- HDH77
- Series
- Halloween Series (2022) · 4/5
- Year
- 2022
- Product line
- Special lines · Halloween Series (2022)
- Casting
- What-4-2
- Designer
- Phil Riehlman
- Color
- Clear green
- Tampo
- White, Yellow & Light Green flames on sides & across top, 'Happy Halloween' on sides
- Base
- ZAMAC
- Window
- Clear
- Interior
- Chrome
- Wheels
- PR5
- Country
- Malaysia
- Status
- Regular
- Notes
- Identical to CFV09
Further special lines such as 100% Hot Wheels, Showcase, Flying Colors, Pull-Back Speeders, RacerVerse and Legends Tour.
Paint: Clear green; wheels: PR5; made in Malaysia.
The What-4-2 casting first appeared in 2004 and has 35 releases in our database, most recently in 2025.
The Halloween Series (2022) series of 2022 has 5 cars.
Not unboxed yet
We have not had this car on the channel yet. Request it – the most requested cars get unboxed first.
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Frequently asked questions
What is the toy number of the Hot Wheels What-4-2?
The toy number is HDH77 (2022). It is printed on the back of the card.
Which series is the Hot Wheels What-4-2 from?
It was released in 2022 in the Special lines line, series “Halloween Series (2022)” (4/5).
Has Wheel Wonderland unboxed the What-4-2?
Not yet – you can request it on this page.
What-4-2: 35 versions
The 10 closest versions – see all on the casting page.
| Model | Series | Series # | Toy # | Color | Year | ||
|---|---|---|---|---|---|---|---|
| What-4-2FKT65 | X-Raycers 5-Pack | 2/5 | FKT65 | 2018 | |||
| What-4-2FPC60 | Color Shifters | FPC60 | 2018 | ||||
| What-4-2Translucent Red | X-Raycers 5-Pack (2018) | Translucent Red | 2018 | ||||
| What-4-2GHP53 | Track Builder Unlimited 5-Pack | 5/5 | GHP53 | 2020 | |||
| What-4-2Transparent Blue | Track Builder Unlimited 5-Pack (2020) | Transparent Blue | 2020 | ||||
| What-4-2HHY74 | Stunt Tire Monster Truck | 1/6 | HHY74 | 2021 | |||
| What-4-2HHH57 | Ultimate Smash Pack | 6/9 | HHH57 | 2022 | |||
| What-4-2FPC60 | Color Shifters | FPC60 | 2022 | ||||
| What-4-2HDH77 · Clear green | Halloween Series (2022) | 4/5 | HDH77 | Clear green | 2022 | ||
| What-4-2HHY74 | Stunt Tire Monster Truck | 1/6 | HHY74 | 2025 |
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This page last changed: Sep 30, 2026. The Hot Wheels database behind it is our own and is updated daily – releases from 1968 onwards plus our own unboxing videos.