Great car but low mileage.

After considering a lot of options, I finally settled on i20, as it provided all the required features, space, comfort and smoothness I needed after running a diesel engine for 10 years. It delivers on most of the areas. The looks are polarizing and I did prefer earlier models of the car. But, it is not a deal breaker. The interiors of the car, more than make up for exterior quirks. Now, what I liked in the car: 1. The smooth and quite engine. 2. Light clutch, accelerator, smooth gearshift and a wonderful steering 3. Electronics are top notch from the ORVMs, AC, Infotainment, MID, highline tire pressure monitor, steering controls etc. 4. Interior and boot space is sufficient for a small family like mine. 5. Cruise control works really well and this is why I went for this model. What could have been better: 1. The welcome function is quite whimsical and doesn't always work 2. Driver seat although adjustable, still is quite awkward and you either feel perched too high or stuck in a pit. Comfort is Ok though. 3. Android Auto is not full screen and hangs. might be more to do with Android rather than Hyundai. What I don't like at all: 1. It feels underpowered specially when fully loaded and you go over speed bumps and inclines. Diesel option was prohibitively expensive 2. Very low mileage - I mostly drive on Highways or completely empty roads with extremely light foot. I got 13.5 km/l mileage so far in 300 km driven. I wonder what will happen if I drive in a more spirited fashion.