@all saying its "too expensive"
Go ahead repaint your car, its essentially worthless after that 
@rated-r:
1- can i use shampoo/wax on this vinyl?
I do 
2- whenever i wish to take this off, what effect will it have on the orignal colour? will the colour survive without being washed/waxed for a couple of years?
No effect at all. The vinyl needs maintenance just like paint. If you don't maintain it-- it will become dull and scratchy just like paint.
3- what is the price of the topgrade vinyl in the same red colour for the new honda city?
About 5k less than the Civic.
4- any warranties?
What kind of a warranty do you want? We cant guarantee it against scratches, swirls because its totally up to how you maintain it.
