Not just Henry Ford... Apparently General Motors was quite keen on selling vehicles to the Nazis.Foggy, I agree about Ford.
"May 2, 1934, after practicing his sieg heil in front of a mirror, [James] Mooney and two other senior executives from General Motors and its German division, Adam Opel A.G., went to meet Hitler in his Chancellery office."
From an article called "Nazis Rode to War on GM Wheels"
http://www.sfgate.com/opinion/article/Nazis-rode-to-war-on-GM-wheels-2659006.php