Lego Technic Test Track, Technic Coaster, Project X – Test Strecke and X-treme Racers are the names of five identical steel wild mouse roller coasters (three of which are still operating) manufactured by Mack Rides at Legoland theme parks around the world.

[2][3] On March 20, 2004, Jungle Coaster opened at Legoland Windsor in the Adventure Land section of the park.

On March 23, 2018, the Legoland Florida version of Project X became The Great Lego Race, a VR coaster.

During 2018, the Legoland Deutschland version of Project X was upgraded to The Great Lego Race with VR.

After climbing the lift hill, the train makes a hairpin turn and drops down followed by a normal Wild Mouse track.