Some features better in sonet (HTK) and some are better in Fronx( delta plus),eg: Fronx has led head lamps,sonet has halogen,sonet has reverse camera, seat height adjustment etc,but Fronx has not. Sonet is bigger in dimensions ,has bit more space inside.fronx have better fuel efficiency and resale. In our opinion,Both are good cars please do visit nearest showroom and experience both and take a better decision.
A suggestion: First of all kindly mention if it is 1.2 or 1 liter turbo. Another question. Is it a fact that driver seat height adjuster is provided in this particular model, or is it done outside. From what I understand only the fronx turbo automatic has height adjuster. Kindly clarify please...