Here is the full list of all 38 Gearshifters achievements.
All other trophies unlocked.
Use 15 different boosts.
Destroy all Elite vehicles.
Survive any stage without taking damage.
Purchase all upgrades.
Destroy 50 enemy vehicles with melee attacks.
Purchase 10 charge abilities.
Defeat all factions.
Deliver 10 different cargoes.
Game completed (Any mode).
Destroy the Emissary.
Acquire 20,000 currency.
Complete a Citadel stage.
Unlock 5 liveries.
Unlock all driving skills.
Destroy the Spearhunter.
Complete a Northern Expanse stage.
Purchase 10 weapons.
Destroy the Marauder.
Complete a Sentry Ranges stage.
Destroy the Suncopter.
Destroy an Elite vehicle.
Complete a Dark Haven stage.
Complete an Ochre Wastes stage.
Destroy the Thunderer.
Destroy the Wrecker.
Destroy an enemy with a Reverse attack.
Complete a Shadow Quarter stage.
Destroy the Juggernaut.
Destroy an enemy with a Powerslide attack.
Complete a South Uplands stage.
Destroy the Sawdozer.
Defeat a faction.
Complete a Frontier Province stage.
Equip a secondary weapon.
Equip your car with an upgrade.
Destroy the Combustor.
Complete a Primary Sector stage.