[Dziugsas]

Try to set the random values when gamemode is connected or when the car is spawned for example:

Code:

public OnGameModeInit()
{
	for(new i;i < MAX_VEHICLEs;i++)
	{
		VehicleInfo[vehicleid][BatteryLife] = random(500);
		VehicleInfo[vehicleid][EngineLife] = random(500);
	}
	return 1;
}