Complex sentence: Gama did not stick firmly to 1:43 scale and some 1:25 scale vehicles were produced and even a Matchbox sized Minette series-which did not last very long.
Split into simpler sentences: Gama did not stick firmly to 1:43 scale and some 1:25 scale vehicles were produced. Gama even produced a Matchbox sized Minette series-which did not last very long.