u/Possible-Client1507

I am gonna purchase my first ever car and i need suggestion regarding that, i want sedan and fuel average should be 15+.Mostly usage will be in Islamabad and rawalpindi but i also had to ocassionally commute to Murree where roads are steep specially link road in villages which are small and steep. I have zero idea so kindly suggest me some good options in this range and what are things that i need o keep in mind. Thanks!!!