Transforming XML to XML

I have a very simple question about transforming XML to XML.  I have been
using XSLT to transform XML to XHTML and displaying the result in Internet
Explorer.  I would like to do the same but with XML displayed in the browser.
A search of the archives has not provided a satisfactory solution.  Here is a
simplified XML file, testdata.xml:

<?xml-stylesheet type="text/xsl" href="renewal.xsl"?>
<Data>
	<car>Chevy</car>
	<car>Dodge</car>
	<car>Ford</car>
</Data>

Here is a copy of my XSL file:

<?xml version="1.0" encoding="ISO-8859-1"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" version="1.0" encoding="iso-8859-1" indent="yes"/>
<xsl:template match="/">
		<xsl:apply-templates select="Data"/>
</xsl:template>
</xsl:stylesheet>