[merk]

You're slightly off track with it.

First one:

<!--- vehicle display info --->
<span class="smallfont">
<select>
 <if condition="$post['field6']"><option>$post[field6]</option></if>
 <if condition="$post['field7']"><option>$post[field7]</option></if>
 <if condition="$post['field8']"><option>$post[field8]</option></if>
 <if condition="$post['field9']"><option>$post[field9]</option></if>
 <if condition="$post['field10']"><option>$post[field10]</option></if>
</select>
</span>
<!--- /vehicle display info --->

Second:
You cannot have a link inside an select dropdown box. It is not designed to do what you're doing with it. However, you can add colour.

<select>
 <option style="color: #556633">This option will be red</option>
 <option style="background-color: #556633">This option will have a red background</option>
</select>