There are numerous factors to consider here, and a few myths that need busting. First, for a beginner driver, what really matters is an engine with linear power delivery and quick, predictable throttle response. That makes it easier to accelerate smoothly and judge overtaking manoeuvres. Not all naturally aspirated engines are inherently responsive; some can actually demand more effort in day-to-day driving.
An automatic gearbox is always advisable for beginners. It removes the need for manual gear changes and lets you focus fully on the road. Given your city-highway split, with the bulk of driving on the highway, a good torque-converter automatic is the best option. That said, some CVTs also work well on highways.
For the cars on your shortlist, we would narrow it down to two based on the size and space you’re looking for. If you’re comfortable with a compact SUV, the Skoda Kylaq AT is the one we’d recommend. The 1.0 TSI engine is very responsive and, paired with the capable 6-speed Aisin torque-converter automatic, it’s an easy car to drive both in the city and on the highway. Yes, being a turbo-petrol, it is a bit on the thirsty side, but since you’ve mentioned that the car will only be used on weekends, we assume your running won’t be very high, and the impact on your wallet will be limited.
If your wife prefers a bigger car, the new Seltos is a good alternative. Here, the 1.5-litre naturally aspirated petrol with the CVT makes sense. While it isn’t as punchy on the highway as the Kushaq or Kylaq, it works well in the city, is more fuel-efficient, and most importantly, is available with a stretch of around Rs 2-3 lakh over your Rs 15 lakh budget.