Deposit For New Car

Hye My Name Siddiq im from malaysia such a nice country yahh... Firstly i need a funding deposit for new car, me and my wife for now borrow my eldest sister car, my eldest sister such a good person love her so much unfortunely she need the car back on early september 2018 i discuss with my wife to buy new car but we dont have much money because we just married on march 2018 we still build up our life. I really need a car but dont have much money to give deposit, to the kind soul outhere i believe in karma if u do sonething good to other people it will return back to u.. Im struggling for my new life with my lovely wife.. Will do second work as a uber/grab for partime job if i got new car. Thx so much n sry my english not so good but im trying the describe how im struggling in my new life with my wife.