Swift is just launched just now and it will take minimum 1.5-2 months untill we see on roads,
Its better if you visit all dealers (suzuki for swift, toyota for Yaris and Honda for City1.5) to get experience.
Swift comes in Tax-slot of 1000-1300 cc whereas Yaris (1329cc/1496cc) and City1.5L comes in 1300-1500CC tax slot.
Cruise control is very helpful in motorway/highway driving
more details https://en.wikipedia.org/wiki/Cruise_control