The Super Size Content Pack Add-on for DIRT 5 has 5 achievements.
Earn all 81 Stamps available in Super Size Career
Gain 3 Stamps in one of the Main Events of Super Size Career
Complete the "Rising Tide" and the "Surf n Turf" Brazil Land Rush events
Drive 30 miles in the Bentley Continental
Complete "Race Oddity" Gate Crasher Event