If your sole focus is on earning money as quickly as possible, the 'Money Maker' build prioritizes skills that directly lead to higher payouts. Max out Long Distance first, as longer routes inherently pay more. Then, invest heavily in High Value Cargo and Fragile Cargo, as these often have significant bonuses. Finally, put points into Just-in-Time Delivery to capitalize on urgent jobs. While this build might neglect ADR or Heavy Cargo initially, it ensures a rapid accumulation of wealth for early expansion.
