Both Hyundai Venue and Tata Tigor are of different segment, Hyundai Venue is a sub-4m SUV whereas Tata Tigor is a compact sedan. So, if you are looking for comfort, performance and read grip than Tata Tigor is a good option and if features, ground clearance, and looks is a concern than Hyundai Venue will be a good option. Moreover, you can click on the given link to see the complete comparison among these two car - Comparison
Choosing the right fuel type depends on your utility and average running of the car. If you are one of those people who drive less then 50/60kms in a day then we recommend you to go with a petrol car as they are easy to maintain, have a longer life span and they cost less then the diesel car. The Diesel cars are preferred if the average daily run of your car is more than 60kms which makes it feasible for a purchase. The statistics help you to choose a perfect car. The diesel cars are more efficient when it comes to fuel economy and provide more torque, therefore, they are preferred to run a more for a person who drives more than 60kms. Select according to your requirements. The petrol engine as it has a low service cost, more life span, generally has a well-controlled NVH level and is cheaper in cost than diesel engines. Moreover, you may check out the options such as Hyundai Venue, Mahindra XUV300, Tata Nexon and Ford EcoSport. Stay tuned.
There won\'t be any effect on the bS4 vehicles, as the BS6 vehicles will be still available for sale in the market. However, the sold BS4 vehicles will be allowed to run on road as presently going on. Stay tuned.