Considering that the lifespan of local cars typically range from 10 to 15 years, the PhUV's design should ideally be classical enough as to keep in pace with newer styling innovations.
If you think about, there are certain cars whose styles have remained consistent but up-to-date through the years - Porsche, VW Beetle, MB, Jeeps, etc. And even if their newer models essentially look the same, these brands continue to thrive in the market because of other innovations.
Actually local jeepneys have the same obsolescence-proof design but perhaps it is more due to lack of innovation and an de facto lower standard of acceptance by the public. Still it can't be denied the jeepney does share some lines with the Jeep.
Thus, it only goes to show that classical lines in design do not necessarily imply higher costs. It may help to take this into consideration in designing our PhUV.
BTW, have you gotten in touch with donbuggy? I think he is also based in Singapore.