Hi Gaurav,
I was surprised even my Discod did well on Fuel when I had it. Loads of people discouraged me when I bought the Disco saying it will drink pertol. However, I went for it being 8 cylinder it did close to 500 for 145 Dhs. pertrol. My Rangie still does 500 in the city and long distance to Liwa etc from Dubai it goes over 650 this i have tested couple of times during my last 2.5 years with Range rover.
However, as they say... To get a good used car and a good wife you still need to be very lucky.
Shabir.
P.S. I have heard of Non-Electric problems in Range Rovers and i do not when it will come but so far Alhamdulillah, nothing as such.