function Car(){
	
}

Car.prototype.getSpeed = function (array = []) {
	if (array === undefined)
		return;

	let tempArr = [];
	for (let i = 0; i < array.length; i++)
		tempArr.push(array[i].speed);

	return tempArr;
}


Car.prototype.getMaxSpeed = function (arr = [], array = []) {
	if (array === undefined || arr === undefined)
		return;
	let tempArr = [];
	let tempMaxSpeed = Math.max(...arr);
	for (let i = 0; i < array.length; i++)
		if (arr[i] === tempMaxSpeed)
			tempArr.push(array[i]);

	return tempArr;
}


const arrayCar = [	{name: 'BMW',		speed: 20,	color: 'red'},
					{name: 'Shkoda',	speed: 110,	color: 'green'},
					{name: 'Dodge',		speed: 110,	color: 'blue'},
					{name: 'Maz',		speed: 60,	color: 'black'}];



Car.prototype.getMaxSpeed(Car.prototype.getSpeed(arrayCar), arrayCar).forEach(element => {
	console.log(element)
});