A Tatra T57K with FFI crosses( French Forces of the Interior (Forces Françaises de l’Intérieur) painted on its wings, participated in the liberation of Paris in August 1944. The “German” Tatra, a booty vehicle ceased during the Allied Forces march from Normandy to Paris, even had a very prominent role at the August 26/29 victory parade, even leading it! But who was behind the wheel? It was a Spaniard! Amado Granell, an anti-fascist Spaniard, became part of the French 2nd Armored Division under General Philippe Leclerc and landed on Omaha Beach on D-Day with 2000 other countrymen. In fact Granell was one of the very first to enter Paris and he was granted to head the parade. The Spanish participation on the liberation of Paris was not very much published, but recently more acknowleged.
Amado Granell: http://en.wikipedia.org/wiki/Amado_Granell
Spaniards in WW II: http://www.mve2gm.es/la-nueve/