Here is the full list of all 15 Rallyallyally achievements.
Win your first race!
Win 10 races!
Win 100 races!
Win a race by coming first in each round!
Lose a race to a bot...
Participate in a race with 8 competitors!
Pave 10000 meters worth of road!
Used the Boxing Glove 50 times!
Hit the car pushing the tarmac three times in the same race!
Used the Grappling Hook 30 times!
Used the Grappling Hook to go from last place to first place!
Used the Rocket Boost to travel 5000 meters!
Used the Rocket Boost to secure first place in a round!
Laid 100 Oilslicks!
Made 3 cars slip in the same Oilslick!