Why are parts for Porsche Land Rover Range Rover Parts so Expensive?

Porsche is a sportscar company that recently started making some other segment cars for financial reasons (SUVs started taking over the car world in 2000s by storm, and Porsche caught a ride in the luxury segment). In many ways, the Cayenne is not really a Porsche and the opinion of the public can be somewhat skewed by this, depending on who you are concerned about.

Range Rover is not quite a brand, rather a model, or, more recently, a series of models from Land Rover. Land Rover is a long-term offroading specialist, and Range Rover was originally nothing more than a somewhat bigger, somewhat more comfortable alternative to the series Land Rover, i.e. Defender predecessor.  The smaller models, like Evoque, which is still relatively good with it's Terrain Response system, but it's undeniably a "lifestyle" SUV rather than a proper off roader. After all, it's available with 2WD.

As for Land Rover Range Rover Parts, for example Control Arm, Ball Joint,  Stabilizer Bar Link, Tie Rod End, Axle Joint, gernerally we use much better materials, most of them is aluminum parts which is light and cost, for production, we may use Forging or Casting for suspension steering Parts but not punching, forging control arm quality is much more stable while is cost higher, all we do is make sure for the parts stronger, stable, longer life and most important safe. In China, we have smiliar situation that Land Rover parts is expensive.