Sorry, Your Brother has quite the imagination or cant judge speed so well.
The max for a Spark in windless conditions is 50 KPH.
My DJI FPV with Gemfan props will do over 100 kph.
Just a few days ago my brother managed to fly his spark in windless conditions at 100km/h! He basically forced it into ATTI mode, put it in sport mode, and let it rip! Crazy!😆