Honda is planning to launch a diesel variant of its City, but we haven't received any confirm report which says about the exact launch date of the product. We will update you once we hear anything on the same from officials itself. However, the car is expected to be launched by end of 2014.
Certainly, you can get your car modified as per your choice. Coming to the front grill, you can replace it with the different grill. For that, we suggest you to get in touch with the authorized service centre as they will be the best people to suggest you few compatible grills to choose from.
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