changes in Formula One car racing rules
... that changes in Formula One car racing rules introduced in 1978 banned the use of the Brabham BT46B "fan car" after it won its first—and only—race at the Swedish Grand Prix?
... that <b id="mwAW8"><a class="mw-redirect" href="./Formula_one_rule_changes_since_1950" id="mwAXA" rel="mw:WikiLink" title="Formula one rule changes since 1950">changes in Formula One car racing rules</a></b> introduced in 1978 banned the use of the <a href='./Brabham_BT46#Brabham_BT46B_–_the_"Fan_car"' id="mwAXE" rel="mw:WikiLink" title="Brabham BT46">Brabham BT46B</a> "fan car" <i id="mwAXI">(pictured)</i> after it won its first—and only—race at the <a href="./Swedish_Grand_Prix" id="mwAXM" rel="mw:WikiLink" title="Swedish Grand Prix">Swedish Grand Prix</a>?