That's it!
I have to admit that I've been digging a little deeper and it turns out I have to apologise because Allan L was partly right: this is not an original car (it does look too neat for that), but a modern recreation of the 1901 Rochester that, driven by Juan Cassoulet, won the first auto race ever celebrated in Argentina; it was built by one John (or Juan, depending on the source) Hampton around an original Rochester engine (I'm not sure if it's the engine of Cassoulet's car or another one).