This thread is worthless without actual pics. HOWEVER, hear me out...

Yesterday, a convoy of four camouflaged Cadillacs rolled through downtown Marquette, tailed by an Opel Astra wagon and an Astra GTC OPC (both sans camo).

Two of the Caddies were about the size of a CTS, but the other two were much larger. I figured XTS, right? But they had much flatter hoods and decklids, along the lines of an old DTS:

Any idea what the Cadillacs could have been?