dear
ur car skin seems dry and thirsty
further seems u are not using appropriate drying microfiber towels
first of all buy some quality microfibers even chinese mf better than rs20 wala cloth
and next time when u wash ur car spray detailer spray on wet car and than wipe to dry with microfiber, its will help you to dry skin without water marks , well i am not fan of formulla 1 products , try turtle ice shampoo or armorall also good shampoo
well u need stuff apart from meguair's than try turtle swirl and secratch remover, its a kind of polish, not only eliminate ur swirls and light secratches but also polish the skin and give good surface to wax again turtle having relaibale good and economical brand here for wax like turtle wax
islambad brothers pls help to guide best economical place for required stuff, jazakallha