Since 99% of cars (including me) usually breathe off the throttle in The Esses, reducing wheel weight propably isn't priority #1. That said...
The Carrera 5-spoke lightweight is my all time favorite wheel for the Boxster S. A month after I ordered the car, I saw these wheels on a 996 and started to drool
PS - I have taken the The Esses flat out, but only twice after a good exit from The Ninety. Generally I hit the Ninety too hot and scrub off 2 mph so it doesn't count. Speed at the back straight track out is about 105. Hey wait a minute, I need more power for the Back Straight! Wheel weights do matter
Hybrid Mode
