Here is the full list of all 50 Hot Wheels World's Best Driver achievements.
Collect (100% of all the possible tokens in the game)
Collect all Secret Tokens
Use more then 5000 speed boosts
Perform a 30 second Wheelie
Earn a 99x chain multiplier
Earn three medals on all Red events without using Quick Restart
Earn three medals on every event without using Quick Restart
Unlock all the Liveries for the Red Team Vehicles
Unlock every vehicle livery
Unlock all the Liveries for the Yellow Team Vehicles
Unlock all the Liveries for the Blue Team Vehicles
Unlock all the Liveries for the Green Team Vehicles
Earn three medals on every event for the Red Team
Earn three medals on every event in the game
Earn at least one medal on all Red Team Events
Earn at least one medal on every challenge in the game
Complete all events for each team in the game
Complete all four Extreme Duels
Fall through the floor of a Wall Of Death event
Collect (75% of all the possible tokens in the game)
Perform a Cat Landing
Earn three medals on all Yellow events without using Quick Restart
Earn three medals on all Blue events without using Quick Restart
Earn three medals on all Green events without using Quick Restart
Perform a Red special ability in game
Earn three medals on every event for the Yellow Team
Use Special Ability 100 times
Perform a Yellow special ability in game
Cause 100,000 points of damage
Earn three medals on every event for the Blue Team
Earn at least one medal on all Blue Team Events
Collect (50% of the possible tokens in the game)
Play Parachute Precision event without opening your chute
Collect all the tokens in an event
Complete the event even after having toppled into a roll
Stay On Fire for more than 1 minute
Perform a Blue special ability move in game
Earn at least one medal on all Green Team Events
Earn three medals on every event for the Green Team
Perform a Green special ability in game
Complete an Extreme Duel
Get crushed by a Snowball
Finish an event with the Jet Threat and keep your wings
Earn three medals on any Event
Tag a ghost vehicle in a Chase event.
Earn a 50x chain multiplier
Earn a 20x chain multiplier
Earn a 10x chain multiplier
Collect a Token