I have currently Hyundai i20 2013 model petrol want to sell it and buy a second hand diesel car I have two seen two cars 1. 2017 model tata bolt 2. 2015 2nd gen ford figo Both are in my budget and want your opinion on this...which one will be a better choice for me. Both cars have all and all same in same condition. Just wanted to know which will have low running and maintenance cost in the coming time.