At the start of the game, the player is asked to specify a name for the currency used for the rest of the game. Money is central to Road Trip Adventure, as it is necessary to purchase most parts. To win money, one can race, advertise for various shops, sell parts to a resident of My City, or even play roulette. Five shops can provide a small above-car billboard to advertise with: the coffee shop in Peach Town (10 currency per km), a noodle restaurant in Fuji City (20 currency per km), a cake shop in Sandpolis (30 currency per km), a wool shop in White Mountain (40 currency per km), and a coconut shop in Papaya Island (50 currency per km). Each shop gives you a certain amount of money per kilometer driven while equipped with its respective advertisement sign. The player can also put one sign on each teammate.