Why on earth would anyone enter a 750 Moretti in such a tough event? (It was won by a Fiat 1900). it would be like entering a Suzuki Cappucino in the Paris-Dakar. Mad.
I expect in the hope of a class win or simply to finish. Either result would publicise the car.
A team of NSU Prinz 30's ran in the Argentine
Gran Premio de Carretera in 1959 - and 3 of the 4 finished with a tremendous publicity bonus.
Similarly a team of 3 Goggomobiles ran in the Safari in 1957 - but none finished. Nevertheless they got a lot of sympathetic coverage while they lasted.