From your shortlist, we think the Swift diesel is the one that meets most of your needs. It is economical to run, offers a good ride and the aircon works very well too. The interior space however is not as good as that of the Getz. The Getz diesel is due only later in the year, but till then we recommend you go for the Swift diesel though it is a little over your budget. However, if your budget is tight, our second recommendation is the Wagon R Duo