Maruti has officially said that it will be displaying a compact SUV along with the Ertiga MPV at the Auto Expo.  The details of the platform on which the SUV will be built are not yet out but one assumes that it could be the same stretched SX4 platform on which the Ertiga is built. Toyota builds the Innova and the Fortuner on the same platform so we assume that the Ertiga and the compact SUV also could be sharing a platform.  Maruti has also said that it will be showing other cars such as the Palette, the MR Wagon and Solio will be on display.  Maruti is keen on gauging customer reaction to the 660 cc engines that the Kei jidosha cars in Japan use.  If customers react positively there is a probability of these engines powering some of the cars.  In the days when petrol prices are high it makes abundant sense to use smaller displacement engines which are more fuel efficient.