Definitely not a deer.
It was a last generation smart 450 at 70 mph into a concrete barrier. The other side is basically intact with a still working door. I DID hit a deer with mine the day after I got it. Plastic panels rebounded and I had to replace a busted headlight. I did all the work myself - no insurance claim. Although it was a relatively low speed hit after emergency braking, it would have cost a lot more to fix my previous Honda Civic with a busted front end and dented hood. And, that's why my smart auto insurance is so cheap.
The whole video can be found here: