I keep having issues with the code. It keeps giving me a accident immediately after running the code.

namespace Chapter$2$Example$6$

$\{$

public class Program

$\{$

static void Main$()$

$\{$

Console.CursorVisible $=$ false;

const int ROAD$\_$WIDTH $=20$;

Vehicle playerVehicle $=$ new Vehicle

$(10,20,\text{'}^\text{'},$ ConsoleColor.Cyan, $0)$;

Vehicle computerVehicle $=$ new Vehicle

$(10,0,\text{'}8\text{'},$ ConsoleColor.Green, $0)$;

$//$vehicle computerVehicle $=$ new Vehicle

$//(10,0,\text{'}8\text{'},$ ConsoleColor.Grren, $0)$;

Random random $=$ new Random$()$;

List list $=$ new List$()$;

while $($true$)$

$\{$

Console.Clear$()$;

int newXposition $=$ random.Next$($ROAD$\_$WIDTH$)$;

Vehicle vehicle $=$ new Vehicle$($newXposition$,0,\text{'}8\text{'},$

ConsoleColor.Green, $0)$;

list.Add$($vehicle$)$;

foreach $($var computerVehicle in list$)$

$\{$

if $($playerVehicle$.$XPosition $==$ computerVehicle.XPosition

&& playerVehicle.YPosition $==$ computerVehicle.YPosition$)$

$\{$

playerVehicle.Collide$()$;

$\}$

if $($computerVehicle$.$YPosition $<$

Console.WindowHeight $-1)$

computerVehicle.YPosition$++$;

else

computerVehicle.YPosition $=1$;

computerVehicle.Display$()$;

playerVehicle.Display$()$;

while $($Console$.$KeyAvailable$)$

$\{$

ConsoleKeyInfo key $=$ Console.ReadKey$()$;

if $($key$.$Key $==$ ConsoleKey.LeftArrow$)$

$\{$

if $($playerVehicle$.$XPosition $>0)$

playerVehicle.MoveLeft$()$;

$\}$

else if $($key$.$Key $==$ ConsoleKey.RightArrow$)$

$\{$

if $($playerVehicle$.$XPosition $+1<$ ROAD$\_$WIDTH$)$

playerVehicle.MoveRight$()$;

$\}$

else if $($key$.$Key $==$ ConsoleKey.UpArrow$)$

$\{$

if $($playerVehicle$.$Speed $+10<200)$

playerVehicle.Accelerate$()$;

$\}$

else if $($key$.$Key $==$ ConsoleKey.DownArrow$)$

$\{$

if $($playerVehicle$.$Speed $-10>0)$

playerVehicle.Brake$()$;

$\}$

$\}$

Thread.Sleep$(200-$ playerVehicle.Speed$)$;

$\}$

$\}$

$\}$

internal class Vehicle

$\{$

$//$auto$-$implemented properties

public int XPosition $\{$ get; set; $\}$

public int YPosition $\{$ get; set; $\}$

public char VehicleSymbol $\{$ get; set; $\}$

public ConsoleColor VehicleColor $\{$ get; set; $\}$

public int Speed $\{$ get; set; $\}$

$//$constructor

public Vehicle$($int xPosition, int yPosition,

char vehicleSymbol,

ConsoleColor vehicleColor, int speed$)$

$\{$

XPosition $=$ xPosition;

YPosition $=$ yPosition;

VehicleSymbol $=$ vehicleSymbol;

VehicleColor $=$ vehicleColor;

Speed $=$ speed;

$\}$

$//$methods

public void MoveLeft$()$

$\{$

XPosition$--$;

$\}$

public void MoveRight$()$

$\{$

XPosition$++$;

$\}$

public void Accelerate$()$

$\{$

Speed $+=10$;

$\}$

public void Brake$()$

$\{$

Speed $-=10$;

$\}$

public void Display$()$

$\{$

Console.SetCursorPosition$($XPosition$,$ YPosition$)$;

Console.ForegroundColor $=$ VehicleColor;

Console.Write$($VehicleSymbol$)$;

$\}$

public void Collide$()$

$\{$

Console.SetCursorPosition$($XPosition$,$ YPosition$)$;

Console.ForegroundColor $=$ ConsoleColor.Red;

Console.WriteLine$("$X$")$;

Console.SetCursorPosition$($XPosition $+2,$ YPosition$)$;

Console.ForegroundColor $=$ ConsoleColor.White;

Console.WriteLine$("$Accident

Press Enter to Quit."$)$;

Console.WriteLine$()$;

Environment.Exit$(0)$;

$\}$

$\}$

$\}$

$\}$