I've ordered two new tyres from Costco UK for the rear of my 2011 IS250-C. It appears that those fitted are the original from the factory and although not worn out, the tread area shows crazing. This was not a failure on our annual MOT test but was an advisory comment.

I'm a bit concerned how the fitter jacks-up the rear of the car given the roof mechanism. The Lexus manual shows a central jacking point with the trolley-jack at 45-degrees.

I'll show him the Lexus instruction and urge minimal raising but does anyone have any guidance to offer?

 

There is a pad near the middle underneath the quarter panel that the manual tells you to use with the jack when changing the tires. I made sure the shop aligned the lift to those four points here: