WKS, Suzuki Swift mileage in local is very bad, its 1300CC but in long its a strong engine. Its maintenance is expensive and so is its parts. Also, buying a used car of almost 4 years will surely won't give you a peace of mind. As far as Wagon R is concerned its a 1000CC fuel efficient engine, parts and maintenance is cheaper as compared to Swift. And ofcourse its Brand new car so GOD Forbid if any casualty happens the car won't give you any issue atleast for 3 years and ofcourse it will be in warranty so you will have a peace of mind. It has almost all the luxury Swift has.