They really arent that much lighter, only a couple hundred lbs... friends SI weighed in just over 3200 with him and his sound system in it... thats on scales as he normally drove it... with less power than ours... should be slower :P I pulled him by 2-3 lenghts playing around, made him mad... told him to get boosted... so he sold it for a NA integraidiot
curb weight is low yes, but add the person and all the crap most people put in their cars... goes up quite a bit for the average joe and makes a huge difference
thats why most people do motor swaps and add turbos... they have to make alot more power to catch up to us... race from a dig and spank his A$$