private void lblCadCar_Click(object sender, EventArgs e)
{
CadCar cad = new CadCar();
cad.MdiParent = this;
cad.Show();
}
private void btnCadastrarCarro_Click(object sender, EventArgs e)
{
CadCar telaCadastroCli = new CadCar();
telaCadastroCli.Show();
}