Mr Badar go for an 2008 to 2012 s350 or s500, take it to Shahnawaz, they will diagnose the car, if the car have any errors or malfuctions, u will get to know about them. In s500 make sure the gear shifts well, and if the battery is weak so it will not shift. Check the batteries aswell. Apart from that check all the buttons and make sure they are functioning properly. A used s500 2006 or 7 will cost u 60 lacs, keep the 10 lacs bracket for 2 years. So by the end of 2 years, your loss will be only nominal, i mean only 10 lacs.
If u go for the hybrid, u will lose money every year and at the times of selling it.