<page_title> Erwin Leo Himmel </page_title> <section_title> Concept cars </section_title> <table> <cell> 1991 <col_header> Year </col_header> </cell> <cell> Audi Quattro Spyder <col_header> Concept car </col_header> </cell> <cell> Frankfurt IAA <col_header> Show </col_header> </cell> </table>
The Audi Quattro Spyder was shown at the “Frankfurt IAA” in 1991.