Cadillac Northstar LMP
...that the Cadillac Northstar LMP Le Mans prototype did not actually use an engine from a Cadillac, but instead an Oldsmobile?
...that the <b id="mwB5s"><a href="./Cadillac_Northstar_LMP" id="mwB5w" rel="mw:WikiLink" title="Cadillac Northstar LMP">Cadillac Northstar LMP</a></b> <a class="mw-redirect" href="./Le_Mans_prototype" id="mwB50" rel="mw:WikiLink" title="Le Mans prototype">Le Mans prototype</a> did not actually use an engine from a <a href="./Cadillac" id="mwB54" rel="mw:WikiLink" title="Cadillac">Cadillac</a>, but instead an <a href="./Oldsmobile" id="mwB58" rel="mw:WikiLink" title="Oldsmobile">Oldsmobile</a>?