I've worked on numberous protons, and in fact protons cars are
actually copying what other manufactureres are producing. Wira like
the Evo3, Waja like Mit Galant, and Gen2 like Mazda 3. Though I dun
really respect them as they like to 'copy', their products can last
rather long, but it depends mostly on the drivers.
The suspensions are not soft, and in fact they are independent
Macperson Struts. If you like a hard one you might want to try mod
a Esi Suspension into it, but its not a perfect fit anyway. Or, you
might go for Racing springs, eg sparco.
Also, the undercarriage is just like any other cars. Wiras in
Malaysia may encounter more problem, for the roads in Malaysia are
not as 'well made' as in Sg.