It appears to be Italian, and with a free online translation, it reads:
The automodello with internal-combustion engine that we propose to you
is one narcotic and it originates them retort in scale 1:8 of the
bolide of Schumacher: you will be able at a distance to construct and to pilot an authentic
jewel of micromechanics, realized in exclusive right for
De Agostini from Kyosho, on Ferrari licence.
