Here is the full list of all 24 Rush Rush Rally Reloaded achievements.
Finish the game in easy mode. You must at least qualify level 10.
Finish the game in normal mode. You must at least qualify level 10.
Finish the game in hard mode. You must at least qualify level 10.
Finish the game in insane mode. You must at least qualify level 10.
You must qualify each race up to and including level 10, but you must not finish first every time.
You must finish first in every race up to and including level 10.
You must finish in level 11, but you must not finish first.
You must finish first in absolutely every race.
You must qualify in level 10 using the Bahnwagen.
You must qualify in level 10 using the Albatross.
You must qualify in level 10 using the Tundra 078.
You must qualify in level 10 using the Flatliner.
You must qualify in level 10 using the Tarantula.
Find the classic car that is hidden in one of the levels.
Find the small vehicle that is hidden in one of the levels.
Unlock the UFO for use in multi-player modes.
Unlock all secret vehicles. Try searching for them in hidden locations in the levels.
Finish the game without running over a single person or cow. If other cars hit them, it's not your fault.
Run over at least 25 pedestrians and finish the game.
Run over at least 5 cows and finish the game.
Defeat all challengers in Challenge Mode.
Win all races in Challenge Mode.
Beat all levels in the Grand Prix in 18 minutes or less.
You must finish first in absolutely every race in INSANE mode.