I wonder if Lexus has ever put this engine in front of a manual gearbox. If only for internal testing purposes...feels like they have never gotten the 8-speed auto gearbox right in these 5.0L cars.
So when the 3rd generation IS appeared everyone remembered the second generation IS and particular that IS F. We wanted that car as the final 2014 IS F ended and the new gen car was making an appearance. It only took 8 model years and a refresh of the 3rd gen car to do it. Better late than never I guess. Having said that I am waiting for one to become available in Ultrasonic Blue Mica 2.0 or possibly Infrared which is also a great color. As it stands production has been spotty so it looks like if I get one it will be a 2023 model. This is going to be the last of the breed. We will not see another naturally aspirated Lexus V8 or possibly any V8 of any kind again from Toyota/Lexus. The 8 speed isn't the best but it also isn't bad. I learned what made it happy and for a daily driver with a sporty side it's great. The Aisin 8-speed is not ZF 8-speed track day great but I don't plan on doing a track day in this car. I have done track days in the RC-F and GS-F which share this transmission so they could do it if needed.
The 2UR-GSE V8 in the IS 500 is the same as in the LC 500, RC-F and GS-F but not the IS F. It is related but the cars after the IS F have an engine with many little changes which adds up to the 51-56hp difference. In typical Toyota fashion they share the exact same engine code so most are not aware. I've seen some posts about the catalog of changes.
I've never been able to get past the large-mouth bass grill for any of the latest variants. Even passed on a reasonably priced LC500. My last Lexus was an SC430. I am spoiled.
And the whole Toyota thing of being unable to 'resume' the cruise control after puttering through some traffic. Do they know better than the rest of the industry?