I would prefer LPG over 200 bar pressure CNG. LPG has performance equal to or even better than petrol and is much safer than CNG. Plus, in the 55KG cylinder, you can fill around 40 litres of LPG and forget going for fill up for a long time.
The only trouble is unavailability of Auto gas LPG. The one filled from roadside shops is low quality, expensive and risky. It may even damage the engine in the long run.