When it comes to most reliable mid sector car brand, one name that comes to our mind is Honda. Honda City is an awesome car. It has great features and awesome mileage. You should go for it's diesel variant. The sun-roof version is slightly overpriced but the automatic diesel version is a total steal deal. It has all the features of a Mercedes and reliability and pricing of a Honda. What more can you ask for?
It is very spacious and the looks are also killer. Perfect combination of things one needs in a car