I had polo 1.2 earlier, exchanged for Vento TSI 2020 highline plus. It's an amazing comfort and convenience. I had best experience in driving comfort. I drove 19000 kms in 10 months. Average mileage on highway is 21km/l. Best I got was 25km/l in 65km speed average on highways. With 70 to 80 km speed range mileage was 20 to 21 km/l. Max I got was 27km/l with 50 to 60 km speed for 50 km drive.