Here is the full list of all 43 Little Racers STREET achievements.
Have all available cars in your garage
Win 200 races in career mode
Beat developers best time on event C-68 - 42.701
Beat developers best time on event A-72 - 47.397
Finish 200 races in career mode
Finish an online race
Win an online race
Finish 10 online races
Win a race in unfair difficulty level
Win 100 races in career mode
Purchase your first Class A car
Win a race with a heavily damaged car
Win 10 rain events
Pay 2 million credits in repairs
Beat developers best time on event B-64 - 37.768
Drive a total of 500 Kilometers
Win a race with an underpowered car
Finish 100 races in career mode
Get to 1st place in the ranking
Win a class A or B race without suffering serious damage
Win 50 races in career mode
Purchase your first Class B car
Win 10 snow events
Finish 50 races in career mode
Beat developers best time on event E-28 - 22.134
Beat developers best time on event D-28 - 42.652
Have 20 cars in your garage
Improve your ranking to place 10
Complete 20 challenges
Finish a race in last place starting in the first place of the grid
Purchase your first Class C car
Earn your first million credits
Improve your ranking to place 50
Improve your ranking to place 100
Win 20 races in career mode
Finish 20 races in career mode
Tune a car to the maximum level
Purchase your first Class D car
Improve your ranking to place 200
Win a race starting in the last place of the grid
Customize a car in career mode
Purchase your first Class E car
Finish your first race in career mode