Here is the full list of all 17 Gurney to Gurney achievements.
Destroy 1000 enemies.
Destroy 500 enemies.
Defeated enemies 25 times
Destroy 100 enemies.
You have purchased 10 upgrades
Already 10 wins
Destroy 50 enemies.
You have purchased 5 upgrades
You have 5 wins
You purchased your first upgrade
Destroy 10 enemies.
Destroy 5 enemies.
Your first victory
Destroy 1 enemy.
Half way
You have 75 wins
You completed the game