Thanks to www.moderncamaro.com for the news:

2012 Camaro ZL1
6.2L Supercharged LSA engine
“At least 550hp and 550tq”
Upgraded TR6060 6-speed manual (no auto available!)
3.73 Rear gear ratio
Magnetic Ride Control
Dual-mode exhaust (similar to Corvette Z06)
Brakes: F: Brembo 6-piston 14.6″ 2-piece rotors  R: Brembo 4-piston 14.4″ rotors
Unique forged aluminum wheels: F: 20×10  R: 20×11
Tires: Goodyear Supercar F2, F: 285/35-20  R: 305/35-20
Upgraded driveshaft
Electric power steering

Unique hood with functional carbon-fiber extractors
Unique front bumper with vertical fog lamps and DRLs and functional front splitter
Unique rear spoiler
ZL1 badging

Interior:
Suede seat inserts, ZL1 logo stitched into headrests
Suede dash/IP insert
Optional suede steering wheel and shifter (similar to CTS-V)
Alloy pedals
Dual power seats
Door and dash inserts are Carbon Flash with Red light accent
New steering wheel
Rear camera in rearview mirror
Auxiliary gauges will include a boost guage

Price and Ordering Details
Ordering information will be available in 4th Quarter 2011
Production will begin in 1st Quarter 2012
Pricing has yet to be determined.