No benefit to using Chinese wheels over original ones. Fuel average goes down, ride gets uncomfortable, bushes wear out prematurely due to excessive vibration, very high chance of blow out, get bent easily, low profile tires are prone to bursting when going over bumps at high speed etc. Extremely difficult to find a spare 17 inch wheel in an emergency. Not much variety when it comes to buying 17 inch tires in Pakistan.
God forbid if one of the tires get punctured, you won't be able to find a 17 inch tire at any local shop at short notice. You'll be left stranded.
All Vossen wheels in Pakistan are third rate copies. All come from China and are of very low quality.