I know this picture has appeared on the forum of a site about coachbuilt vehicles, dating the car 1920; but according to an article on catalan newspaper El Periodico (easy to google, but the text is in Spanish), the car was made in 1917 (It is possible, however, that the photograph was taken in 1920). Also, in 2015 the Elizalde Foundation tweeted and facebooked pictures of what appears to be the same car, or a very similar one (albeit with different mudguards) competing in a race in 1917.