Hans G. Lehmann
... that photographs of test prototype cars, pioneered by Hans G. Lehmann, have led car manufacturers to take lengths to disguise their cars during a test session?
... that photographs of <a href="./Development_mule" id="mwHBE" rel="mw:WikiLink" title="Development mule">test prototype cars</a>, pioneered by <b id="mwHBI"><a href="./Hans_G._Lehmann" id="mwHBM" rel="mw:WikiLink" title="Hans G. Lehmann">Hans G. Lehmann</a></b>, have led car manufacturers to take lengths to disguise their cars during a <a href="./Test_drive" id="mwHBQ" rel="mw:WikiLink" title="Test drive">test session</a>?