Went from a 2012 to 2017 but a 350 SRW. Liked my 12 and my first diesel but love the 2017. 16 to 17 is where there were changes from the ground up as the PSD was a little long in the tooth frame wise etc.
My 2017 had the block heater recall done just yesterday and the door handle recall this time last year.
Toys my Voltage TH with ease.
The braking was the big improvement and I have heard of turbo ( ceramic ballbearings) on the 2012 a potential issue. Sold my 12 privately with 92 k and recovered 75% back.
That allowed to go to Platinum this time!!!
I think you would smile driving that 2017 plus 450!!!