I'll throw in my 2c.
I'm in the market. My 2010 Tacoma has 200K on the dial, I've been reluctant to do any more upgrades to it with that many miles on it. It really could use a gear update since I run 33" tires. Other than that no major issues daily driver to work, does get poor gas mileage but again I should upgrade gears if I want to return it to stock conditions or remove the big tires.
So, I set out for some test drives. 200k might be time to trad in?
2018 Tacoma Off-Road. (I want the access cab so Pro is non-starter)
New engine doesn't have the get-up and go of the 4.0 in the 2010 with 33s! Mash the petal it lumbers it way up, no manual transmission available for the Off-Road version. I tried the manual override shifting of the Auto it really didn't help much.
The payload and towing numbers are good on paper. I'd like to see it with my 900+ lb FWC in it. On my 2010 I had to upgrade the suspension but on paper the 2010 has much lower spec. numbers. I wonder if the specs. hold true in real life on the new 2018s? I'm guessing it's going to need helper springs if anything. It rides pretty soft stock.
The interior is nice. Upgrade for sure from a Toyota owner point of view but lots of buttons.
Nav system is OK. I think the Chevy has the better nav system.
2018 ZR2 Diesel. Just seems sluggish to me, but coming from gas engines that might be expected. It is slower than the Toyota and even slower than my current truck. If I went this route 2 problems. You want an access cab, its special order only. there are like 3 dealers in the whole country with an access cab in this. The bed of the access cab is significantly different than the Toyota for me that means modification of the camper to fit the new size bed. These two make it a show stopper even if I switch to wanting the gas version. I didn't think the gas version was as responsive as my current truck but it was equal to the 2018 Toyota.
The interior is not that great. Very plastic which I've seen everyone seems to mention too. Lots of buttons too but the buttons are smaller than the Tacoma and easier to fat finger. However the Nav/Tech/Radio system is more desirable than the Toyota.
What I've learned from my test drives. I think I'll be putting new gears in my old Toyota and seeing if I can reach 300K...