The Defender doesn't need much spent on it to go almost anywhere. The D4 already has lots of trickery on it to achieve similar results to the Defender. But, the D4 costs about $30k more to achieve similar results. Much of that $30k is spent on cosmetic things the typical Defender owner doesn't want anyway.
I bought our Defender because I wanted a capable workhorse with a roomy body. All it needs is HD front springs for the weight of the bullbar and winch, airbags in the rear for towing and a new set of tyres - the originals have done 70,000ks. In contrast, our son's Hilux has had a heap spent on the suspension and tyres and I'm not convinced it's necessary.
Sent from my GT-P5210 using AULRO mobile app

