Mahindra Thar, the one what I have is the initially launched one in 2014, BS 3 complaint one. As we use it a Coorg its a beast made for the roads and off road capabilities there. Maintenance is nothing much. Proper riding, proper fuel,oil and air to be maintained and it will run well with no much issues. Haven't used 4/4 till now, but till now we never regretted that we bought this vehicle. Absolute Gem on road to drive. Thanks Mahindra.