My Brother has been using a Chinese Wax which he bought cheaply. The results were outstanding immediately, the car was shining like a star. But considering his nature of work, he has to drive 150 kilometre's on daily basis. His car used to get extremely dirty with mud stuck like glue on day 1 after waxing. After that I bought Turtle Platinum Liquid wax. I saw it pretty cheap for around 750 rupees only. As a test panel I applied it on half of his bonnet last week. The results were as usual good ( just like the Chinese wax ). So the shining factor was the same for both waxes. But this wax beaded water a lot. The Chinese wax had little to no beading at all. And secondly the wax somehow repelled dirt for a pretty long time. The car that used to get extremely dirty on day one was now just a little bit dusty after 5 days of 150 kilometre's daily driving. I have yet to see the how many days it would take to get back to extremely dirty state. My guess is 7 days maximum.
Although Chinese wax was good.But I found Turtle Platinum wax better in terms of easy application and removal ( since it wax liquid ) and slightly longer lasting. And from the cost perspective it was just 100-200 rupees more expensive.
Also note that I myself drive a Mehran. I have used both waxes on my car. Immediate results were the same because my car is painted gloss white which doesn't give any significant reflection. But Turtle wax lasted just a bit longer ( only by a few days ).
Currently I am planning to buy Turtle Ice Wax and Meguair's Ultimate wax. Both are expensive and I would definitely be comparing the results to see if the price really justifies them or not.
I think it is good that you made this thread. I wanted people to test and help each other out on buying COST EFFECTIVE products.
In fact, I would like to review a product right now. 4 weeks back I was browsing through CAR shampoo's when some one recommended me SNAP car shampoo. It is a local brand. A bottle costed me around 110 rupees. I have used that bottle about 5 times now. 3 time's on my car and twice on my brother's and it is still half full. It makes excellent bubbles, gives an amazing odour and gives an extra ordinary shine while cleaning. My experience with SNAP car shampoo has been amazing. It does what it is supposed to and has both Wash and Wax properties. Would share pics inshAllah next time I wash my car.