It consists in collecting letters C, T and R and winning the race in the first place.
Below you will find a detailed guide for Crash Nitro Cart.
Inferno Island
The letter C can be found at the beginning of the route.
The letter T is located behind the ramp at this point (check image).
The letter R is just before the finish line, jump up and catch it in flight.
Jungle Boogie
The letter C is in the first shortcut.
Jump in and catch the letter.
The letter T is in the second shortcut.
On the ramp, jump left and you’ll find yourself in a short cut.
The letter R is just before the finish line.
The letter T is another shortcut.
On the ramp, jump left to find yourself on a wooden platform.
The last letter is on the ramp with a pendulum.
Jump up and catch it in flight.
The letter T is in a shortcut.
Jump to get it.
Almost at the end of the route, jump off the ramp and catch the letter R in flight.
Electron Avenue
The first letter is on the first left turbo belt.
The third letter is on the second laser obstacle, this time drive under it.
Deep Sea Driving
The letter C is at the beginning of the route.
The letter T can be obtained after you drive through a series of ramps.
The letter T is on the way and you won’t miss it.
The letter R is on the ramp behind the statues.
Jump up and catch it in flight.
It’s in the grass.
The letter T shouldn’t be a problem.
R is located on the last jumping ramp.

Jump up and catch it in flight.
Meteor Gorge
On the big hill, turn left onto the shelf with the crate.
The letter C is lying there.
The letter T is located on a slope in the middle of the route.
The last letter is in shortcut.
better to use the booster and jump on the platform.
Barin Ruins
You will find the letter C before the gutter with the sphere-trap.
Jump in the right place and catch it in flight.
Out Of Time
The letter C is at the beginning of the route.
You have to use the!
crateand set a ramp to catch the letter in flight.
The letter T is quite hard to get.
The letter R is in a small cave near the road.
Assembly Lane
The letter C is behind the swamp.
The letter T is lying on a shortcut.
you should use the booster to jump into this shortcut and grab the letter.
The letter R is easy to spot, jump off the ramp and catch it in flight.
Hyper Spaceway
The letter C is located at the beginning of the route on a large ramp.
The letter T is located in a shortcut.
After leaving the first portal, drive left and fall down to get to the shortcut.
Catch the last letter in flight in the place shown in the picture.
Stay in the middle and you’ll catch it.
Bonus route - Retro Stadium
The letters are arranged in the same way as in Turbo Track.