Lexus LS400 Tyres:

The V12evo is quiet performer (low interior noise), but not a soft one: You'll feel the scars on the blacktop. I am not the kind of driver to deliver a proper judgement on how sporty a tire is (at least not with a Lexus LS dinosaur). If I say the V12evo is not responsive, it might as well be the car.
The rubber wears down pretty fast, even for someone going leisurely.
And then the eternal Hankook problem: The tires rumble after a short (or long) rest, and get quiet only after some miles of driving. Obviously the spot the car's weight rests on develop a kind of flatness.

In my view it's a mediorcre product at an adequate price. If someone could convince me a Dunlop, Conti or Michelin last longer (for what they cost more) and are more comfortable, I would drop the Hankooks. Otherwise I'll rebuy them.

I purchased a set of 4 of these tyres as Yokohama UK couldn't get stock of the usual and excellent AVS dB550 I use, and I needed to get my car through its MOT. I wanted to stick to Japanese tyres with a symmetrical pattern, as assymetric patterns don't suit the LS400. (I speak from experience; a few years ago I had bought a set of P7s but they were so unbearably noisy, albeit grippy, that I had to change them within 2,000 miles). The Falken 512s give a quiet and smooth ride on straight motorways. But they are poor round corners, and on wet roads I am so glad my car has traction control as the grip accelerating from rest on wet roads is poor. They are also wearing out quickly, which is not necessarily a bad thing as this means I can soon switch to some better tyres! I love the engineering on Japanese-made products, but am very disappointed with Falken 512 tyres.