It looks to be the base version of the 450hL. The heated seat controls should be next to the P button as below.
This image is from a 450hL with premium pack. As far as I can see on the used market, the facelift 450hL all seem to have the heated seat controls there if they have the premium pack, or are of Takumi / Premium Sport trim.
I havent come across the base version on the used market.