Here is the full list of all 40 Wasteland Angel achievements. It takes around 3-4 hours to unlock all of the achievements on Windows.
Finished the Story mode
Location 6 Finished
Location 5 Finished
50 checkpoints collected in Racing bonus level
25 checkpoints collected in Racing bonus level
Mutant boss killed
Full armor collected
Location 4 Finished
Killed 5 enemies with one Nuke
99x multiplier
25 kills in Frenzy bonus level
50 kills in Frenzy bonus level
Location 3 Finished
100 Million score
Finished a level with over 25% accuracy
Tank boss killed
Drive over 10 enemy drivers in one level
50x multiplier
Location 2 Finished
10 special weapons collected (but not used yet)
10 Million score
Maxed out the weapon level
20x multiplier
All civilians saved in one level
20 Kill combo
25 kills in Survival bonus level
50 kills in Survival bonus level
Location 1 Finished
Harvester boss killed
Turned 5 enemies into flames with one Napalm
1 Million score
10 Kill combo
Recharge to full hitpoints in Recharge Area
15 seconds of airtime in one level
5 Kill combo
100K score
Killed a civilian
Tutorials passed
2 Kill combo
Killed an enemy driver