Prodigy Evo uses a Turnegy outrunner, a Turnegy TZ85 speedo and a 5S 5000mAh Lipo pack.
Usability. The batterypacks are combat tested and seem to do the job well.
The TZ85's, the reprogammed versions are in use in several machines with good succes. Tormenta 2 is one example.

The brushless outrunner. Not combat tested yet.
On the other hand, with only the body running on 3 bearings, I don't see a lot of issues with the motor. The transmission with the tripple Obelt could be a problem.

Total pricetag, below €140.