Suspension

HI, is there anything that can be done within the parameters/confines of the existing suspension to soften the ride a bit? I'm not getting any younger and our roads aren't getting any better. Aftermarket coil-overs probably not available here in South Africa but I could maybe play with the spring rates, if I knew what they were. Is there any scope to play with the tyre pressures? My tyres are 195/45/16 almost new Conti's.

MY2005 had the suspension the designers wanted but the accountants didn't allow on the earlier cars.
This is available as a complete bolt on kit from various suppliers such as DMGRS (who offer one of the best prices) or Rimmers.

https://rimmerbros.com/Item--i-RP1746