The Nangan Area is positioned inside the south-western space of the map.
The Treasure Chest is positioned on the Irokawa House Centre, which is inside the southern level of this space. Quick journey to the top of the runway (not the drag strip), head in direction of the launchpad and head to the left facet upon reaching the rocket. Maintain going throughout this concrete space till you attain the chest.
Merely smash the Treasure Chest, and the three factors and 100,000 CR are yours.
Weekly Problem: Basic Vantage
This week requires you to leap into the Aston Martin DB5 Vantage 1964, and spend 20,000 credit on upgrades, full 2 Road Races, and eventually earn 3 Stars at Velocity Zones. Upon completion, you’re rewarded with 5 factors and 25,000 CR.