MUNCLE MIKES COLLECTOR GUIDE
2020 Koenigsegg Jesko — 2025 HYY66
Mellow Yellow makes the Jesko’s curved fenders easy to see above the dark lower body. The black upper accents keep the wide rear wing from becoming one uninterrupted block of yellow.
- Release year
- 2025
- Series
- HW Race Day 5/10
- Toy code
- HYY66
- Body color
- Mellow Yellow
Official Identification
| Manufacturer | Mattel |
|---|---|
| Brand | Hot Wheels |
| Casting/model | 2020 Koenigsegg Jesko — 2025 HYY66 |
| Release year | 2025 |
| Series | HW Race Day 5/10 |
| Toy/product code | HYY66 |
| Scale | Not documented in the reviewed references |
Physical Details
| Body color | Mellow Yellow |
|---|---|
| Documented identification cues | Mellow Yellow body; dark upper accents; plastic base |
| Base, interior, windows and country | Not fully documented in the reviewed references unless stated elsewhere on this page |
Packaging Details
| Release format | Use the pictured release and caption; original package details remain unknown when the photograph shows the car loose |
|---|---|
| Toy / product code | HYY66 |
| Regional differences | Not documented in the reviewed references |
What to look for
HYY66 is the yellow 125/250 Race Day release. Horizon Blue JBB59 follows in the same series slot but changes the color and wheel appearance.
Release details
| Identification cues | Mellow Yellow body; dark upper accents; plastic base |
|---|
Variation Summary
Choosing one for your collection
Check the yellow nose for small dark chips and the wing tips for rubbing from storage.
Collector questions
Is the yellow Jesko another 2024 Exotics color?
No. HYY66 belongs to the 2025 Race Day selection, numbered 125/250.
Browse the MM shop
Browse MM’s loose Hot Wheels and finished customs for more cars to add to your display. These are broader collections; check each shop listing for its exact model, scale and condition.
