Template:Navbox/Series/OpenSkyChallenge

{|class="wikitable mw-collapsible mw-collapsed" style="border: 2px solid background: #6C93B1; padding: 0px; margin: 1px 0px 1px 0px; text-align: center; width: 100%; font-size: 85%;" ! style="background: #6C93B1; border-bottom: 2px solid #6C93B1; color: white;" | '''Open Sky Challenge
 * Ariel Atom 3.5 &bull; Ariel Atom V8 &bull; Caterham Seven 620 R &bull; KTM X-Bow R
 * Ariel Atom 3.5 &bull; Ariel Atom V8 &bull; Caterham Seven 620 R &bull; KTM X-Bow R