Best car with top refined engine and low service cost

Purchased Swift Vxi with dual jet engine on May 17-2023, complete first service, on my experience it's a very best car with a highly refined engine, and has lower service cost than other cars in the same segment. The 4cylinder dual jet engine is top-notch, powerful, and fun to drive a car. As part of mileage, it's giving me 20 km/l on highways with AC and 16-17 km/l on normal conditions with AC. Totally satisfied.