Here is the full list of all 49 Mad Max achievements worth 1,000 gamerscore. It takes around 60-80 hours to unlock all of the achievements on Xbox One.
Complete all non-repeating challenges
Collect all History Relics
Complete all optional objectives in all camps
Loot all Scavenging Locations
Have 10,000 scrap in your inventory
Build all projects in all strongholds
Be airborne in a vehicle for 4 seconds or more and land without dying
Complete a Death Run in legendary time with every Archangel
Successfully complete a Death Run with every Archangel
Defeat an enemy vehicle with every Archangel
Own the best V6 and V8 Engines
Clear all threat in Pink Eye's territory
Take down all Scrotus camps
Clear all minefields
Have 5,000 scrap in your inventory
Complete at least one race at every Death Run Location
Collect all body colors
Fly the balloon at every Vantage Outpost
Destroy all scarecrows
Clear all threat in Gutgash's territory
Reduce threat to 0 in the Knit Sack region around Pink Eye's Stronghold
Take out all Scrotus snipers
Fully upgrade Max
Reduce threat to 0 in the Parch Moon region around Gutgash's Stronghold
Complete all Wasteland Missions
Collect all hood ornaments
Reach Road Warrior legend rank
Clear all threat in Jeet's territory
Reduce threat to 0 in the Balefire Flatland region around Jeet's Stronghold
Complete a Time Bomb Death Run
Complete Act 05
Complete Act 04
Complete Act 03
Complete a Death Run in an Archangel
Build two projects in Gutgash's Stronghold
Build two projects in Pink Eye's Stronghold
Take down a Top Dog camp
Complete Act 02
Complete a Scatter Death Run
Build two projects in Jeet's Stronghold
Eat a meal of maggots
Complete a Barrel Bash Death Run
Complete the Dinki-Di Wasteland Mission
Give water to a wanderer
Reach a new legend rank
Complete Act 01
Travel 650 car lengths on foot
Drive the Magnum Opus off a Wasteland jump
Travel 1300 car lengths in a vehicle