200 in 8 kg??? no way dude. I own a 2001 model. It hardly gives 100 Km in city with AC, in 8.5-9.0 Kg gas. I went to islamabad on this ride a couple of months ago, it gave 120 Km on Highway in approx 8.5 Kg gas with AC. Spectra's engine is not mend for economy so if you'll compare it with some other vehicles of its class, it will seem to be a lil of expensive side. Generally what I have heard from other owners, a car in good condition might give upto 120 Km in city. Apart from economy its a very good car. When i went to islamabad, we were six people, with luggage but it didn't cause me any trouble throughout my trip and AC worked very well in 40 C heat! So if you want a power-packed car will all luxuries, willing to compromise a bit on economy and not a resale maniac, then go for it.
P.S: I once did 192 Km on highway with my Alto Vx, on CNG and with AC in 8Kg gas.