public class CarListViewModel
    {
        public List<Car> cars{ get; set; }
        public int selectedCar { get; set; }
        public List<Material> materials { get; set; }

        // (...)
    }

public class Material
    {
        public string name { get; set; }
        public string lot { get; set; }
        public int quantity { get; set; }
    }

@model CarListViewModel

@{
    ViewData["Title"] = "Registar material";
}

<div class="material-registration-wrapper">
    <h2 class="title">Registo materiais - Carro</h2>

    @using (Html.BeginForm("MaterialDummy", "Material", FormMethod.Post, new { id = "materialRegistrationForm" }))
    {
        <table class="material-registration-insertion">
            <tr>
                <th>Material</th>
                <th>Lote</th>
                <th>Quantidade</th>
            </tr>
            <tr>
                @{List<Material> mList = new List<Material>();}
                @{Material m1 = new Material();}
                <td>@Html.TextBoxFor(model => m1.name, null, new { type = "text" })</td>
                <td>@Html.TextBoxFor(model => m1.lot, null, new { type = "text" })</td>
                <td>@Html.TextBoxFor(model => m1.quantity, null, new { type = "text" })</td>
            </tr>
            @{ mList.Add(m1); }
            @Html.HiddenFor(model => mList, Model.materials)
        </table>
        <table class="submit-table">
            <tr>
                <td>
                    <div class="submit-table">
                        <input type="submit" value="Submeter" class="submit-button" />-->
                    </div>
                </td>
            </tr>
        </table>
    }
</div>