Yes we also have problems with the cars. After the wipe cars (sarka, olga) is bouncing when the driver sit in. They are uncontrolable. The sarka was the worst. When we entered in Polana main crossroads (next to orlovets) its start to live its own life. Bouncing from fence to fence and spinning around and bouncing from objects like a ball in pinball machine. Car was in neutral and going around 10-15kph. (Fearing of fps drops and lagg)