Here is the full list of all 50 Rally Racers achievements.
Finish race in 1st place on the Volcano Lane track.
Finish race in 1st place on the Ashy Trail Track
Finish race in 1st place on the Steam Valley track.
Beat Droog and his ghosts on the Lava Lands track.
Finish race in 1st place on the Parade Day track.
Finish race in 1st place on the Puddle Jumper track.
Finish race in 1st place on the Balloon Bonanza track.
Beat Droog and his ghosts on the Ravine Jump track.
Finish race in 1st place on the Ravine Jump track.
Finish race in 1st place on the Arctic Challenge track.
Finish race in 1st place on the Penguin Central track.
Beat Droog and his ghosts on the Ice Road Track.
Finish race in 1st place on the Mushroom Twist track.
Finish race in 1st place on the Devil's Bridge track.
Finish race in 1st place on the Baa Nanza track.
Beat Droog and his ghosts on the Sheep's Crossing Track.
Finish race in 1st place on the The Lost Mines track.
Finish race in 1st place on the Red Canyon track.
Finish race in 1st place on the Dine Pit track.
Beat Droog and his ghosts on the Canyon Jump Track.
Finish race in 1st place on the Rally Pastures track.
Finish race in 1st place on the Haystack Rumble track.
Finish race in 1st place on the Up the Creek track.
Beat Droog and his ghosts on the Up the Creek Track.
Finish race in 1st place on the Icy Cliff track.
Finish race in 1st place on the Jack's Cabin track.
Finish race in 1st place on the Fjord Fury track.
Beat Droog and his ghosts on the Droog's Revenge Track.
Complete all of the races!
Collect all oranges on the Volcano Lane track
Collect all oranges on the Ashy Trail track
Collect all oranges on the Steam Valley track
Collect all oranges on the Parade Day track
Collect all oranges on the Puddle Jumper track
Collect all oranges on the Balloon Bonanza track
Collect all oranges on the Two Crossings track
Collect all oranges on the Arctic Challenge track
Collect all oranges on the Penguin Central track
Collect all oranges on the Mushroom Twist track
Collect all oranges on the Devil's Bridge track
Collect all oranges on the Baa Nanza track
Collect all oranges on the Lost Mines track
Collect all oranges on the Red Canyon track
Collect all oranges on the Dino Pit track
Collect all oranges on the Rally Pastures track
Collect all oranges on the Haystack Rumble track
Collect all oranges on the Up The Creek track
Collect all oranges on the Icy Cliff track
Collect all oranges on the Jack's Cabin track
Collect all oranges on the Fjord Fury track