I want to buy a deisel city car . Which is a good option among fabia , swift & i20 ?

If budget is no constraint and the main criteria are space and good mileage, look no further than the i20 1.4 CRDi. But be warned that this car would be expensive to buy and maintain. The next best choice in the Swift - less space but you just cant go wrong with a proven product with a Maruti badge on it. Avoid the Fabia lie you would avoid AIDS and Cancer.