Given that the car will be used primarily by your parents, ease of entry and exit, good visibility, and stress-free ownership are aspects we'd prioritise. The best option is the Maruti Suzuki Wagon R, which will fit your parents' requirements well. We'd recommend the more powerful 1.2-litre engine that delivers stronger performance. Opting for an automatic depends on how open your father would be to switching to an auto. The switch from manual to auto requires a few days, as drivers need to get used to not using the left foot (it's best to keep the left leg folded over during this transition period to avoid inadvertently pressing the brake pedal). The benefit is a far more convenient driving experience. The Wagon R’s AMT automatic is worth checking out.