I do like it but I was hoping for a bit more Cadillac styling design and cues. The Mazda DPi really nailed the manufacturer "custom" bodywork design. This looks pretty much like a Dallara with different headlights. The only real Caddy cues I can see are the vertical side headlights. Kinda wish some more body work, nose/frontal area and headlights would have reflected more Cadillac styling. I still like it but there's more to be desired. I guess function over form.
I'm happy to see it's got the 6.2l V8 instead of the turbo V6, I would have missed that roar in Prototype with the Corvette DP's gone now.
Edit - posted before I saw the 2017 thread.