DiRT 3

There are 5 different trick types that you will need to ace.
These are:
Jump (Blue areas)
Donut (Green poles)
Smash (Blocks dotted around the track, vary in colour)
Drift (Between the orange cones)
Spin (Spin on the spot inside the purple/pink coned area)

To ace each of these 5 areas you need to achieve 3 full triangles when performing them, Jump requires a high jump so you will need a good run up, Donut requires a long maintained spin around the pole, smash can be achieved by breaking a set of 3 blocks, drift will require passing through the cones at a fast speed along with a decent angle of drift and spin requires you to maintain the spin on the spot inside the area.

This can be achieved once you have completed all 5 tutorials in the Gymkhana Academy during the Gymkhana Academy Final (These will explain each area in more depth anyway)

Will unlock once the race has finished
Here's a video to show you each of the 5 areas.