Method to edit does not work ASP.NET MVC 5

I am working in a web application of a car dealership, I have a view to edit the object of type Automovil that has the following parameters: model, year of manufacture, color, price, transmission, fuel, brand, model, category , state, extra and photo.

I generated my controller using MVC and Entity Framework, however, it does not modify any of the data, it only modifies the photo.

Method to edit

[HttpPost, ActionName("Edit")]
    [ValidateAntiForgeryToken]
    public ActionResult Edit(Automovil automovil, HttpPostedFileBase archivo)
    {
        if(automovil ==null){
            return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
        }
        if (TryUpdateModel(automovil, "", new string[] { "idAutomovil,modelo,año,color,precio,informacionExtra,idMarca,idCategoria,idCombustible,idEstado,idTransmision" }))
        {
            try
            {
                if(archivo != null && archivo.ContentLength > 0)
                {
                    if(automovil.archivos.Any(i => i.tipo == FileType.Imagen))
                    {
                        db.archivo.Remove(automovil.archivos.First(i => i.tipo == FileType.Imagen));
                    }
                    var imagen = new Archivo
                    {
                        nombre = System.IO.Path.GetFileName(archivo.FileName),
                        tipo = FileType.Imagen,
                        ContentType = archivo.ContentType
                    };
                    using (var reader = new System.IO.BinaryReader(archivo.InputStream))
                    {
                        imagen.contenido = reader.ReadBytes(archivo.ContentLength);
                    }
                    automovil.archivos = new List<Archivo> { imagen };
                }
                db.Entry(automovil).State = EntityState.Modified;
                db.SaveChanges();

                return RedirectToAction("Index");
            }
            catch(RetryLimitExceededException /* dex */)
            {
                //Log the error (uncomment dex variable name and add a line here to write a log.)
                ModelState.AddModelError("", "Unable to save changes. Try again and if the problem persists, see your system administrator.");
            }
        }
        ViewBag.idCategoria = new SelectList(db.categoria, "idCategoria", "nombre", automovil.idCategoria);
        ViewBag.idCombustible = new SelectList(db.combustible, "idCombustible", "nombre", automovil.idCombustible);
        ViewBag.idEstado = new SelectList(db.estado, "idEstado", "nombre", automovil.idEstado);
        ViewBag.idMarca = new SelectList(db.marca, "idMarca", "nombre", automovil.idMarca);
        ViewBag.idTransmision = new SelectList(db.transmision, "idTransmision", "nombre", automovil.idTransmision);
        return View(automovil);
    }

As I mentioned before, the only thing that edits me is the image of the car, not the other data.

Debugging the program I could notice that when editing some Automobile fields they appear as null.

Debug

I would be grateful if you could help me to see what I have to correct in my controller to receive that data.

EDIT

Vista Code

@model Autoventas_IN6AV.Models.Automovil

@{
    ViewBag.Title = "Editar";
}

<h2>Editar Información</h2>


@using (Html.BeginForm("Edit", "Automovil", null, FormMethod.Post, new { enctype = "multipart/form-data"}))
{
    @Html.AntiForgeryToken()

    <div class="form-horizontal">
        <h4>Automovil</h4>
        <hr />
        @Html.ValidationSummary(true)
        @Html.HiddenFor(model => model.idAutomovil)

        <div class="form-group">
            @Html.LabelFor(model => model.modelo, htmlAttributes: new { @class = "control-label col-md-2" })
            <div class="col-md-10">
                @Html.EditorFor(model => model.modelo)
                @Html.ValidationMessageFor(model => model.modelo)
            </div>
        </div>

        <div class="form-group">
            @Html.LabelFor(model => model.año, htmlAttributes: new { @class = "control-label col-md-2" })
            <div class="col-md-10">
                @Html.EditorFor(model => model.año)
                @Html.ValidationMessageFor(model => model.año)
            </div>
        </div>

        <div class="form-group">
            @Html.LabelFor(model => model.color, htmlAttributes: new { @class = "control-label col-md-2" })
            <div class="col-md-10">
                @Html.EditorFor(model => model.color)
                @Html.ValidationMessageFor(model => model.color)
            </div>
        </div>

        <div class="form-group">
            @Html.LabelFor(model => model.precio, htmlAttributes: new { @class = "control-label col-md-2" })
            <div class="col-md-10">
                @Html.EditorFor(model => model.precio)
                @Html.ValidationMessageFor(model => model.precio)
            </div>
        </div>

        <div class="form-group">
            @Html.LabelFor(model => model.informacionExtra, htmlAttributes: new { @class = "control-label col-md-2" })
            <div class="col-md-10">
                @Html.EditorFor(model => model.informacionExtra)
                @Html.ValidationMessageFor(model => model.informacionExtra)
            </div>
        </div>

        <div class="form-group">
            @Html.LabelFor(model => model.idMarca, "Marca", htmlAttributes: new { @class = "control-label col-md-2" })
            <div class="col-md-10">
                @Html.DropDownList("idMarca", String.Empty)
                @Html.ValidationMessageFor(model => model.idMarca)
            </div>
        </div>

        <div class="form-group">
            @Html.LabelFor(model => model.idCategoria, "Categoria", htmlAttributes: new { @class = "control-label col-md-2" })
            <div class="col-md-10">
                @Html.DropDownList("idCategoria", String.Empty)
                @Html.ValidationMessageFor(model => model.idCategoria)
            </div>
        </div>

        <div class="form-group">
            @Html.LabelFor(model => model.idCombustible, "Combustible", htmlAttributes: new { @class = "control-label col-md-2" })
            <div class="col-md-10">
                @Html.DropDownList("idCombustible", String.Empty)
                @Html.ValidationMessageFor(model => model.idCombustible)
            </div>
        </div>

        <div class="form-group">
            @Html.LabelFor(model => model.idEstado, "Estado", htmlAttributes: new { @class = "control-label col-md-2" })
            <div class="col-md-10">
                @Html.DropDownList("idEstado", String.Empty)
                @Html.ValidationMessageFor(model => model.idEstado)
            </div>
        </div>

        <div class="form-group">
            @Html.LabelFor(model => model.idTransmision, "Transmisión", htmlAttributes: new { @class = "control-label col-md-2" })
            <div class="col-md-10">
                @Html.DropDownList("idTransmision", String.Empty)
                @Html.ValidationMessageFor(model => model.idTransmision)
            </div>
        </div>

        @if (Model.archivos.Any(i => i.tipo == FileType.Imagen))
        {
            <div class="form-group">
                    <span class="control-label col-md-2"><strong>Foto Actual</strong></span>
                    <div class="col-md-10">
                        <img src="~/Archivo/[email protected](i => i.tipo == FileType.Imagen).idArchivo" alt="Imagen Automóvil."/>
                    </div>
            </div>
        }

        <div class="form-group">
            @Html.Label("Foto", new { @class = "control-label col-md-2" })
            <div class="col-md-10">
                <input type="file" id="Imagen" name="archivo" />
            </div>
        </div>

        <div class="form-group">
            <div class="col-md-offset-2 col-md-10">
                <input type="submit" value="Guardar" class="btn btn-default" />
            </div>
        </div>
    </div>
}

<div>
    @Html.ActionLink("Regresar al listado", "Index")
</div>

@section Scripts {
    @Scripts.Render("~/bundles/jqueryval")
}

EDIT

Model Code

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.ComponentModel.DataAnnotations.Schema;
using System.ComponentModel.DataAnnotations;

namespace Autoventas_IN6AV.Models
{
    public class Automovil
    {
        [Key]
        public int idAutomovil { get; set; }
        [Display(Name = "Modelo"), Required(ErrorMessage = "Este dato es obligatorio.")]
        public String modelo { get; set; }
        [Display(Name = "Año de Fabricación"), Required(ErrorMessage = "Este dato es obligatorio.")]
        [DataType(DataType.Date)]
        [DisplayFormat(DataFormatString = "{0:yyyy}", ApplyFormatInEditMode = true)]
        public DateTime año { get; set; }
        [Display(Name = "Color"), Required(ErrorMessage = "Este dato es obligatorio.")]
        public String color { get; set; }
        [Display(Name = "Precio"), Required(ErrorMessage = "Este dato es obligatorio."), DataType(DataType.Currency)]
        public String precio { get; set; }
        [Display(Name = "Extras"), Required(ErrorMessage = "Este dato es obligatorio.")]
        public String informacionExtra { get; set; }

        public int idMarca { get; set; }
        public virtual Marca marca { get; set; }

        public int idCategoria { get; set; }
        public virtual Categoria categoria { get; set; }

        public int idCombustible { get; set; }
        public virtual Combustible combustible { get; set; }

        public int idEstado { get; set; }
        public virtual Estado estado { get; set; }

        public int idTransmision { get; set; }
        public virtual Transmision transmision { get; set; }

        public virtual Reservacion reservacion { get; set; }

        public virtual List<Archivo> archivos { get; set; }

    }
}