Im sorry but your statement is more than exaggerated. There are no such slopes in that area. And PLEASE, cars like civic, city Altis, gli etc can out climb vitz on CNG with 500 teenagers + AC on any given slope and you are making it impossible for all the 2wd cars on the planet earth.
As for Swift, this car can out climb and out run what ever vitz can do if both are driven by professionals.
Believe me my 1000cc santro feels more torqy then vitz.