WIDER AND LOWER
I don't want to make my '22 M40i ride any stiffer than it already does, but I do want to change the stance. 15mm spacers for width, 21" 726i wheels at 8.5 and 9.5, 255/40/21 295/35/21 tires. Lower with H&R Sport Springs, 1.4 in front, .8 rear. Realign. That's it.
I have used H&R's for years on many different cars, from SUV's to M3's to full blown Porsche race cars, and have always found them without defect, and consistently carrying whatever weight they declare. The "Sport Springs" keep the car feeling about the same as OE, only lower. The car looks better, the wheel wells are filled out, and the center of gravity is lower which does slightly help handling and body roll.
I am content with the balance front/rear, and don't feel any apparent under or over steer. I will reassess that after I install the springs.
https://www.hrsprings.com/applicatio...s/4/1995/2022/
At least two other forum participants have gone to this tire size, used spacers, and dropped the car with H&R's, so I am feeling confident that the tires will fit. The guys at H&R concur. I will post photos and a report when I am finished, probably in a month (the springs are on back order)