private void metroTile3_Click(object sender, EventArgs e)
{
AvailableCars form = new AvailableCars();
form.Show(this);
this.Hide();
}
//available cars form
private void CarsTile_Click(object sender, EventArgs e)
{
AvailableCars a = new AvailableCars();
a.Show(this);
this.Hide();
}