Originally Posted by CamaroPhotos
Snapped this on I-96 near the Milford, MI Proving Grounds this morning (sorry about the poor pic quality from my cell phone; not to mention a dirty windshield). I'm guessing these are SLP ZL's since there was no noticeable badging on them yet other than the "ZL" center caps on the rims. The 2 at the front of the trailer are convertibles. All had the distinct exhaust 'cans' and hood to accompany the center caps.
That's the one from SLP to compare with the "real" ZL1.