Money in Mafia: The Old Country is primarily earned through main missions and side activities. While there isn't a complex upgrade system for Tommy's stats, money is used for purchasing new outfits, vehicle customizations, and occasionally for mission-related expenses. Prioritize completing Lucas Bertone's favors to unlock free hotwiring, saving you money on acquiring new vehicles. Don't waste money on unnecessary purchases early in the game; save it for when you truly need a specific vehicle or cosmetic item. There are no weapon shops in the traditional sense, as weapons are acquired from fallen enemies or mission objectives. Efficient money management ensures you always have enough cash for any unexpected expenses or desired cosmetic changes.
