The Best Possible Rear Suspension!

[SoCalGL]

so this is my main question that has been rattling my brain for the past two days.. and seeing I find myself back in the VW world..(I've been gone for awhile).. I come to you guys..what do you guys recommend is the best possible rear suspension set up?

the rules!
1.It has to be already made and created..meaning It canbe custom but there has to be a car in the world that contains it ( in reference to the the 993,996 rear suspension swaps)..hah no theories

2. it has to fit a standard,BJ, IRS Chassis no custom tube chassis ideas.

3. you can change or adjust anything such as using a uniball, 994 trailing arms, shocks whatever!

4. Last, it has to work with a 17 inch tire setup ..cuz I already got the damn 993 calipers!
Now like the Song Goess.... HIT ME WITH YOU BEST SHOT..

this is a weekend/track car so comfort does'nt matter really i'm looking for handling!