There are a lot of good points that have been made in this thread. I think a big factor in your decision will be really the road conditions in your area. Lots of changes in slopes that cause you to bottom out would not be a good thing for a lowered vehicle. The cars I have seen here look quite good, mostly because they have either 19s or dubs on them. I'm having such a tough decision on whether or not I want to get a ZR or G coupe. Keep the pics coming...maybe it'll help persuade me one way or another.
On smooth terrain The Acrobat’sTM innovative Adaptive RigidityTM technology keeps the wheel’s 3 shocks perfectly rigid like spokes. When encountering a bumpy surface, they automatically transform into soft and responsive shocks. With less energy lost to frame vibration and reduced impact to the rider’s body, The AcrobatTM offers a superior riding experience.

All parts drawings illustrate only one application of each fitting. In most cases many other applications are possible. The channels shown in the illustrations are P1000, 15⁄8" square, except where noted otherwise. All 9⁄16" diameter holes use 1⁄2" x 15⁄16" hex head cap screws and 1⁄2" nuts – P1010, P3010, P4010 or P5510 – depending on the channel used. Nuts and bolts are not included with the fitting and must be ordered separately.
Need looks and performance? Coilover suspension is a great option for anyone looking to lower their center of gravity while improving overall handling. Most coilover kits offer both ride height and dampening adjustability while coming in a complete package that will replace your stock springs and shock absorbers.