Not sure if this has been posted before, but Cadillac is putting their final touches on their new Beast 2.0 limo. This new limo has styling cues from the Escalade, CT6 and XTS. I guess President Trump will continue on with the Obama beast until this ready. Contract does not end until the end of next month, so that is why you have not seen it at the Inauguration.
I think Cadillac did a pretty good job with the styling considering they are using 8" thick tank armor and 5" thick glass. It does look a bit better than the current Cadillac One. I guess there have been improvements in armor design which can allow for a more production like car.