Hi yes a fellow members car not mine. Dont know abut the sizes i run 225 / 40 /18s & 255 / 40 / 18s on 8j rims all round team dynamics and also on goodyear f1s
all round and arches are plenty full. When you lower it it may look what you are after, failing that hubcentric wheel spacers, is what you may have to do.
Also longer studs would also be required. Possible some body who mods will be along to sort you out. I have run spacers in the past and to be honest,
more trouble than they are worth. My car is as is i quite like the way it looks standard. I would fit different suspension only because of cost of original.
That is when it fails, wheels i changed to light weight as lexus are made of terrible material. Looks like yours are the rare lexus ones look very nice to.