minim3: German and VW-based. In a book about special-bodied VWs it is featured in the Wendler chapter, but I doubt that it was built by Wendler.
minim4: Böhler single-seater from 1946, built by the Hanomag 2/10 PS designer, Fidelis Böhler
minim5: Bimbo Racer V 12, built in the 1950s by S.I.L.A. from Turin
minim9: Baby-Rhône, built by Paris-Rhône in 1941
minim14: Lucertola from 1948, built by Fermi SA, Treviso
minim15: Marold from Austria, 1951