using System;
using System.Collections.Generic;
using System.Text;

public abstract class Driver
{
    private string name;
    private double totalTime;
    private Car car;
    private double fuelConsumptionPerKm;
    private double speed;

    protected Driver(string name, Car car, double fuelConsumptionPerKm)
    {
        this.Name = name;
        this.TotalTime = 0;
        this.Car = car;
        this.FuelConsumptionPerKm = fuelConsumptionPerKm;
    }

    public string Name
    {
        get { return this.name; }
        private set { this.name = value; }
    }

    public double TotalTime
    {
        get { return this.totalTime; }
        private set { this.totalTime = value; }
    }

    public Car Car
    {
        get { return this.car; }
        private set { this.car = value; }
    }

    public double FuelConsumptionPerKm
    {
        get { return this.fuelConsumptionPerKm; }
        private set { this.fuelConsumptionPerKm = value; }
    }

    public virtual double Speed => (this.Car.Hp + this.Car.Tyre.Degradation) / this.Car.FuelAmount;
}


//--------------------------------------------------------------------------------------------------
using System;
using System.Collections.Generic;
using System.Text;

public class AggressiveDriver : Driver
{
    public AggressiveDriver(string name, Car car)
        : base(name, car, 2.7)
    {
    }

    public override double Speed => base.Speed * 1.3;
}

//--------------------------------------------------------------------------------------------------
using System;
using System.Collections.Generic;
using System.Text;

public class EnduranceDriver : Driver
{
    public EnduranceDriver(string name, Car car)
        : base(name, car, 1.5)
    {
    }
}