Code Review

Missing a closing `</tr>` tag.

You might also want to put this in the `<thead>` section:

```HTML+ERB
<table>
  <thead>
    <tr>
      <th>Manufacturer</th>
      <th>...</th>
    </tr>
  </thead>
  <tbody>
    <% @cars.each do |car| %>
      ...
```