Web Forms :: Output The Values From The Constructors When Choose The Specific List Box Item?

I am trying to create a simple page with a drop down list which has 3 items. Choosing any of those 3 items calls for a specific constructor in the script. Using VB 2008

public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
if (DropDownList1.Text == "Coupe")
{
//Response.Write("You chose the Coupe");
string Engine;
string Transmission;
string Wheels;
string Safety_Features;
string Key_Systems;
string Interior;
string Mileage;
Altima A1 = new Altima(Engine, Transmission, Wheels, Safety_Features, Key_Systems, Interior, Mileage);
Response.Write(A1.displayAuto());
}
if (DropDownList1.Text == "Hybrid")
{
Response.Write("You chose the Hybrid");
}
if (DropDownList1.Text == "Sedan")
{
Response.Write("You chose the Sedan");
}
}
public class Altima
{
//private member variables
private string Engine;
private string Transmission;
private string Wheels;
private string Key_System;
private string Safety_Features;
private string Interior;
private string Mileage;
//public accessor methods
public void displayAuto()
{
System.Console.WriteLine(Engine, Transmission, Wheels, Safety_Features,Key_System, Interior, Mileage);
}
//constructors
public Altima(string Engine, string Transmission, string Wheels, string Safety_Features, string Key_System, string Interior, string Mileage)
{
this.Engine = Engine;
this.Transmission = Transmission;
this.Wheels = Wheels;
this.Key_System = Key_System;
this.Safety_Features = Safety_Features;
this.Interior = Interior;
this.Mileage = Mileage;
string Engine = ("2.5-litre DOHC engine with 175 HP and 180 lb-ft of torque or 3.5-litre DOHC engine with 270 HP and 258 lb-ft of torque");
string Transmission = ("-speed manual transmission or available Xtronic CVT® with manual mode");
string Wheels = ("17 inch 5-spoke aluminum-alloy wheels (2.5 S) or 18 inch 5-split spoke aluminum-alloy wheels (3.5 SR)");
string Safety_Features = ("Six standard air bags as part of Nissan Advanced Airbag System (AABS)");
string Key_System = ("Nissan Intelligent Key® with Push Button Ignition");
string Interior = ("Leather");
string Mileage = ("Up to 5.6 L/100 km on city with eCVT");
}//coupe -------> First constructor
public Altima(string Engine, string Transmission, string Safety_Features, string Mileage)
{
this.Engine = Engine;
this.Transmission = Transmission;
this.Safety_Features = Safety_Features;
this.Mileage = Mileage;
string Engine = ("2.5-litre DOHC engine with 175 HP and 180 lb-ft of torque or 3.5-litre DOHC engine with 270 HP and 258 lb-ft of torque");
string Transmission = ("-speed manual transmission or available Xtronic CVT® with manual mode");
string Safety_Features = ("Six standard air bags as part of Nissan Advanced Airbag System (AABS)");
string Mileage = ("Up to 5.6 L/100 km on city with eCVT");
}//sedan -----------> Second Constructor
public Altima(string Engine, string Transmission, string Mileage)
{
this.Engine = Engine;
this.Transmission = Transmission;
this.Mileage = Mileage;
string Engine = ("2.5-litre DOHC engine with 175 HP and 180 lb-ft of torque or 3.5-litre DOHC engine with 270 HP and 258 lb-ft of torque");
string Transmission = ("-speed manual transmission or available Xtronic CVT® with manual mode");
string Mileage = ("Up to 5.6 L/100 km on city with eCVT");
}//hybrid -----------> Third constructor
}
}

how do I ouput the values from the constructors when I choose the specific list box item?