No. I believe bonnet, guard profile and of course bumper all need modding. On a USA Lexus site a few months back I saw a thread where someone had done it. Lots of work.
Makes sense. Tow bar will interfere with sensor proximity detector.
Choice between getting a tow bar or teaching the unhappy woman you know to compromise 😂
Maybe ask in the ISF forum
https://au.lexusownersclub.com/forums/forum/37-lexus-is-f-club/
I'm guessing though its because there are not enough ISF's to warrant sales or stock holdings in OZ.
Try giving the brakes a few very 'HARD' stops from about 60 to 10 (in a safe place so they get 'very' hot. Then drive normally for a few k's to cool them down.
Cant really help re the mileage. Its too much of a variable. If you want a tyre that lasts a long time forb Continental is the go.
As to the 4 and 4s I have the 4 on the front and 4s on the rear as it was down to available sizes. I have been happy with the 4 in the past on my IS350 and other Euros before this.
This time I put 235's on the front and 265's on the rear and took what was available.
Im an PS4 fan. Used them and prev ps3's with '0' issues and gave good dynamic response.
If you only just potter around I'm no help but I expect my tyre to be there for me when I need it.
I've also found Bob Jane to have the best prices inc fitting and tyre disposal included.
https://www.clublexus.com/forums/is-2nd-gen-2006-2013/867724-found-out-why-our-is250-is350-and-isf-audio-amps-fail.html
Will try to check mine this week. Interesting thread :)
https://au.lexusownersclub.com.com/y2lx9w3d Havent checked local price yet if required.
We cam or Dashcam?
For a dashcam I did on an Audi S3. Found a switched power wire in loom.
On my Lexus I have run an micro usb lead tucked under headlining/A piller to cig liter wiring in console.