t-six_engine" title="Straight-six engine">L6</a></td>
<td align="center"> ?</td>
</tr>
<tr align="center" style="background-color:#E5E4E2">
<td colspan="7"><small>Sources: <sup class="reference" id="cite_ref-2"><a href="#cite_note-2"><span>[</span>2<span>]</span></a></sup><sup class="reference" id="cite_ref-3"><a href="#cite_note-3"><span>[</span>3<span>]</span></a></sup></small></td>
</tr>
</table>
