This is your biggest multiplier. Maxing this early allows you to take transcontinental jobs that offer massive base payouts.
Leveling up is vital for unlocking the high-end customization options introduced in 1.43. American Truck Simulator 1.43 Update Release - SteamDB Save xp and money for 1.43
Completing urgent deliveries provides a substantial XP bonus, helping you level up faster to unlock new truck parts. 2. The "Passive Income" Empire This is your biggest multiplier