The car spotted is a demo car with decals all around. The DDiS and ZDi badge can be clearly seen, differentiating it from the petrol sibling. Apart from the badges, there are no visible changes to the exteriors that separate the diesel from the petrol. The mid-size Maruti saloon will use the same Fiat-sourced 90bhp, 1.3 Multi-jet diesel, that powers the Linea and the refreshed Tata Manza. While the SX4 hatchback in Europe uses Fiat’s 1.9 diesel engines, for India, the 1.3 Multi-jet was considered a more practical choice as it is essentially the same base engine as the one in the Swift and Dzire but with a Variable Geometry Turbo (VGT). Diesel SX4 is expected to cost around Rs 70,000 more than the existing petrol version.