No in the same league. Like comparing Dairy Queen to Chili's.

 

Interesting choices. I am absolutely a fan of the SS and have zero doubt that down the line that these will absolutely be collectors items (especially the 6 sp) considering the ultra low production numbers. (believe it is/was a US/AUS import deal and or GM) Regardless, they are virtually not advertised and a practically a figment of the automotive journalist industry.

This is tough as going from a 10-13 might be somewhat anticlimactic. Have much experience with the little mouse thing owing to my father, stepfather, and stepmother all having post 2014 Lexii. And plenty of time in Lexus loaner cars too from my prior LX470 and LS430.

Looks are subjective, but I really struggle with the current design language of the grill and absolutely much prefer the LS460's without it. That said, the new infotainment screen is undeniably an upgrade.

 

I don't think its worth going from the 10 to the 13

The 13 is probably a better car but like you said it will feel very anti climatic

The chevy SS is just too "plain jane" , for that kind of money you can pick up a really cool American toy (if that's your thing) , challenger, Camaro , stang, vette etc..... something with a 6 speed

You already have the smoothest, most reliable and comfortable car to drive, so now go in the other direction..something more fun and sporty

That's what I did

02 Z (supercharged)

The best of both worlds

 

The reason to go to the 13 from the 10 would be technology and the interior improvements. The interior on the 13+ is improved considerably from a materials standpoint, seats are much improved in front, and the technology is e new Lexus suite with the widescreen, etc.

The 13+ is also stiffer, smoother and quieter.