Proton stands for "Perusahaan Otomobil Nasional" (~national automobile project) and was founded
in 1983 as a cooperation between the Heavy Industries of Malaysia and Mitsubishi. That is why most of the
Proton cars are badge engineered models of Mitsubishi.
The Proton 300/400, sold in Europe, was nearly identical to the Mitsubishi Colt/Lancer