I contend that a larger tyre sidewall results in greater instability during cornering.
I researched a 19" and discovered Road Hero.
While they advocate for their 18" option for the Evoque, I discovered that they offer a 19" variant that is, in fact, more comparable in diameter to the 18".
I utilised Tire Size Comparison for verification.
My tyre dimensions are 245/45/20. Diameter of 729 mm. Circumference: 2289 mm.
The Road Hero RH235, featuring a 155/80/19 specification, has a diameter of 732 mm. Circumference: 2294 mm.
The recommended model for my vehicle is the RH086, with a size of 155/85/18, resulting in a diameter of 721mm. Circumference: 2263 mm.
A 19" size is superior and provides a more precise fit.
I further assert that the RH235 possesses the appropriate wheel nut apertures for Range Rover.