Wait, Unity has a level editor?

After having many problems with trying to get my track model implemented into the Unity engine (mainly due to collision detection problems and exeedingly high framerates, probably them trees), I discovered that Unity has a build in terrain option where it is extremely easy to make terrain that can be made directly in the engine.

Luckily, my track model was not finished yet (the last model that needed to be done) so it's not a complete loss, but a lot of time has been wasted in modelling the track which could have been used elsewhere.

I had a quick go in the unity terrain editor and the whole process is less time consuming than making terrain using blender (although it may not be as customisable). Previewing the terrain using a simple camera set up also had a big impact on the framerate. I was able to have a lot of trees, bushes and grass in the scene and was still achieving comfortable framerates (60+ FPS).