Welcome! You have done the right thing by signing in here before you buy. I hung around nearly a year before I bought my car (CarMax also), and learned a lot of useful things.
I actually do not know of a single distinguishing mark between the '16 & '17, except the '17 doesn't have the credit card key. I worked this pretty hard when I was shopping, too, and ransacked every source I could find.
I put everything I could find in a chart here:
You can see there were quite a few changes between '15 and '16, but nothing much after. So I'd consider those two years equivalent, and would just choose on price and condition.
Oh, and you are so right about Gene! I don't think anybody can fill his K9-size shoes!
2016 V8 VIP+, black with white interior
Last edited by K9Intender; 09-08-2020 at 11:20 PM.
Reason: forgot to mention Gene!