Part of the current hyperboost is due to the fact that videos get recommended to different viewers when they are watched a lot by others. Part of the magic of YT algo.
To put things in perspective, she now has almost twice the views of the latest GTA5 (DDE Tire-slayer) video from pro-gamer steve55, who has 2M subs and even more views than YT Car vloggers Shmee150 and Supercar Blondie latest vids together
Even more insane is the amount of new subs, based on a single video. But all her other vids get more views now too for sure.
The half million mark will be taken this afternoon.
What makes this video special is the combination of the time-lapse speed with tranquil music. Maybe it will boost sales from CMS. But AFAIK she already uninstalled that game a while back
Maybe Luny can show a screenie of the stats with the amount of views going through the roof.
Over night the video will probably crack the 500k mark, we will see. 
TDU, GRID, Assetto Corsa, pCars, NCG, The Crew, Dirt, Forza: MadManCK
Clubs: TDU2: Luny's Fair Friends (VP-Exec), GRID AS: TDUDT (Pres) DT-Racing Team: Team Leader 
Eden Games Can Kiss My Mustang
