'So, from statements of people who actually drive these cars (my benchracing self exxcluded), Porsche should extrapolate that a dedicated -20 mm suspension option is mandatory.'

+++ Turbo drivers are a mixed bunch and one size does not fit all. The standard Turbo will suit more people and sell best, but the hardcore element will always want to improve the performance and thus be lured by tuners.

Porsche should address this hardcore need and make a harder, faster, lighter, lower Turbo S with a sports exhaust to save us from the perils of tuners and voided warranties. And to place the Turbo where it once was - far above the competition.