Not likely, SFI is to improve the response time of the engine rather then fuel economy, the engine still has the same old direct injection system as before, but now the car weighs more then the previous one. Aerodynamic shape wont help much in city, and due to the raised back of the car it might only be pulling a bigger vacuum behind it when moving thus further hindering fuel economy. On motorway, my last car did 14.5-15.5kmpl and m hearing the same for the new model.