Both trains in this video are powered by BuWizz Bricks in Ludicrous mode. Check out https://buwizz.com for more details about BuWizz.
The white train is the LEGO set number 60051 and the TGV is a custom model based on James Mathis' design. Somebody made an LDD file for the TGV.
Here is the link: https://www.youtube.com/redirect?q=ht...