For best results for your car you can use Amway's Silicon Glaze : find more details here : Amway India : Silicon Glaze
MRP Rs. 450 [500 ml]
For Leather and Vinyl cleaning use Buff-Up -> details here : Amway India : Leather & Vinyl Cleaner
MRP Rs. 285 [500 ml]
Both are great value for money.
Also for regular Car Washing use Car-Wash - details here : Amway India : Car Wash 500ml
MRP Rs. 235 [500 ml] [You will require about 10 ml for a standard Sedan, 5 ml for a compact / sub-compact and 20 ml for a bigger SUV/ MUV like Innova, Scorpio, Bolero, Sumo, etc.] so the cost of cleaning by using 10 ml comes to Rs. 4.70 less than Rs. 5.
Merry Christmas to all!