Generation 2 Chevy Volt (2016-2020)
These show the appearance of a 5th seat, aerial views.... it looks like the rear seat back goes all the way across without a split....
http://cdn.carbuzz.com/images2/380000/6000/0/386065.jpg
http://cdn.carbuzz.com/images2/380000/6000/0/386067.jpg
MrEnergyCzar