This from another thread I authored concerning this very topic. These facts and figures were collected from different sources and the wording in quotations was taken from another party. No consideration was given to the weight of the driver. I wouldn't want to be accused of being insensitive. :

“Our weight measurements have gotten some attention around Stuttgart, so I received this breakdown of options weight that goes some way (but not all the way) in explaining the difference between the claimed 1415 kg (3113 lbs.) and the 1530 kg (3366 lbs.) we measured with the first car we tested. These are figures communicated through the PR department:
PASM & PDCC: approx 24 kg, 52.8 lbs.
Sunroof: approx 15 kg, 33 lbs
18-way sport seats: approx 10 kg, 22lbs. (for the pair, delta vs the standard 4-way seats)
Sound packet BOSE: approx 4 kg, 8.8 lbs. over base
Sport-Design wheels: approx 4 kg, 8.8 lbs
Seat ventilation: approx 3 kg, 6.6 lbs.
Extinguisher: approx 3 kg, 6.6 lbs.
Another 4.5kg, 9.9 lbs. go in the fact that the DIN norm specifies a 90% tank while we measure with a full tank, so that's 6.4L of excess (unleaded) liquid at 0.7 density. They did not mention PSE so I am not sure whether any weight addition results from it, neither PCM.”
“PDCC components are:
an electronic control unit (in front of the car);
two valve blocks, one in front of the car and one in the rear;
one hydraulic pump with a hydraulic reservoir and one oil/water heat exchanger (all three in the rear of the car);
two special designed anti-roll bars (one front-axle bar and one rear-axle bar);
four actuators, two per each axle or one per each corner of the car (instead of connecting link/suspension/stabilizer on vehicles without PDCC)
Also pipes, liquid, joints, etc.
I estimate about 20kg. (44 lbs.) in parts and the heavier ones are in the rear.”

Weights of OEM wheels:
19” Base Wheel
8.5”x19” = 22lbs 11oz
11” x 19” = 27lbs 5oz

20” Carrera S Wheel
8.5” x 20” 23lbs 10oz
11” x 20 27lbs 12oz

20” Design Wheel
8.5"x20" 24lbs 11oz
11"x20" 30lbs 4oz

20” Classic Wheel
8.5"x20" 24lbs 3oz
11"x20" 28lbs 4oz

20” Sport Techno Wheel
9"x20" 27lbs 2oz
11.5"x20" 31lbs 1oz

Sound system weights:
Burmester 14 lbs. over base
Bose 11 lbs. over base