One lucky forum member over at Camaro5 has grabbed some shots of what appear to be a pair of 2012 Chevrolet Camaro Z28 models out testing. Oddly, they're wearing Indy 500 pace car stickers.

The new shots reveal little we haven't already seen in our own spy shots of the Z28, but the Indy 500 twist adds some interest to the possible timing of the car's debut. If they are being geared up to run as the pace car for Indy, they'll be staged for a public appearance by the 2011 Memorial Day weekend, which means sometime before May 30 of next year.

The 2012 Camaro Z28 is expected to get a 556-horsepower punch from the same engine found in Cadillac's CTS-V line, the supercharged 6.2-liter LSA V-8. Suspension and braking upgrades are also expected, and as we can see from the various spy shots, it'll wear a new, more aggressive front, side, and rear body treatment.

Hit the original thread at the Camaro5 link below for more photos.

[Camaro5 via Jalopnik]