What is a better measure of handling? How much can they be improved by coilovers and swaybars in the 996 turbo? I was looking at a old road and track mag and it said the skidpad was a .96 and the slalom was a 67.8. That looks low compaired to todays market where a most sports/supercars are posting 1.XX g's and 7X.Xmph through the slalom?

Has anyone tested for how much their handling was improved after bolting on a after market suspension?

 

The first order of business, if you want to improve skidpad and slalom
performance is in tire choice and alignment settings. After that, you
can tune in further but smaller gains by stiffening your suspension,
either by stiffer springs, stiffer sway bars or both. Shock settings will
affect slalom, but not skidpad, because slalom has suspension movement,
whereas in skidpad, everything in the suspension is pretty much still.
Joe

 

Tires are a lot better these days.

Many supercars have tires these days like Michelin Pilot Sport Cup or such..., as well as run 19" per default which in most cases (setup right by the manufacturer) helps. The Turbo sold with PZero I believe which imo is very overrated, or early generation Pilot Sport (not Cup).

EDIT: Eh... distracted, the response would be a mix of slalom and skidpad gives an idea about handling. Most situations of driving are about taking 1 turn at a time during which the skidpad absolute grip is a good measure for how fast you might be able to go. For slalom - the shorter/tighter the slalom, the less relevant - if "medium" could give some agility measure - the lighter the car and the more equal the weight distribution usually gives better value. For a rear engined car the slalom can be tricky, yet in a real life situation the rear engine can give u superior braking and traction, however how often does a road go in a tight repeated slalom?