Which to Buy?

Hi , eveyone I wanted to do a survey for people who are sometimes confused which car to buy? So I have some Questions which u need to answer through your comments. 

1. Which car is best in budget of  Rs.5,00,000 to Rs.10,00,000?
2.  Which car uses diesel?
3. Which car has a greater mileage?
4. Which colour is suitable?
5. Which Brand and which model?
6. Do we get guarantee?

So, Friends just answer these questions as they can help someone to buy a car which is suitable.