[vnabhi]

Good posting. WagonR is a competent city car, though it loses out on the highway.I've driven it at 120 on the GQ, but at that speed, it feels a tad unstable, mainly on account of cross-winds. You may not get so much of cross winds in low slung cars like Alto. 100 is the comfortable speed for a WagonR.
The only hitch on highways is that if you have to overtake a convoy of 3 to 4 trucks on a state highway, the pickup is pretty slow,especially if you are at low speeds.