That the thing. The simplest form of comparison comes in the class. Micro car/ Sedan/ SUV/ MPV. Does anyone actually care if it was A/B/C segment? How many people are actually car savvy anyway? Does every auntie/ uncle with money that could buy for themselves a brand new car, care about class of vehicles? 

Does salesman care to direct you to get a different class of vehicles from another brand that they do not have to help you? At the risk of them losing sales? 

Behind the screen, no one would care what we say. I myself see no need to champion either Proton nor Perodua. But the fact that i can see now is marketing skills.