On the GX model, you can pump a full tank of natural gas on a GX model inside your garage for less than $16.00 and drive 250-300 per tank. The GX is AT-PZEV, is basically next to Zero emission level which translate to the cleanest production vehicle in the world. You can get up to $4,000 back for a tax refund if you buy a new GX after Jan. 1, 2006. You can go to the DMV and get a HOV quicker on a GX vehicle than a Hybrid. It's cheaper to register a GX than a Hybrid in some states. Natural gas has a higher octane rating than Premium Unleaded gasoline. The GX's compression ratio is 12.5 and uses the same block and head as the other Civic's.

But the GX cost about $2,000 more than a non navi hybrid. THe GX's trim is compared to the LX which cost over $6,000 less and still gets 30/40 mpg. Natural gas stations are not abundant vs. normal gas stations. You get more nice features on a Hybrid than a GX like Auto Climate control, alloy wheels, CVT transmission, and better mpg.

Now how about a Natural gas hybrid?