This has become the case with many cars whether they be green (alternative fueled) or newer generations of classics that still use petroleum-based products but are so efficient with respect to their emission controls that they have little or no emissions at all. Catalytic converters have long been a mainstay of the auto industry since they became mandatory by law way back in the late 70’s and early 80’s but unbeknownst to all, these devices though considered to be quite rugged can and do get their fair share of problems. Leaks, cracked pipes and elements are just some of them. They are also quite expensive for the reactive compounds use exotic metals such as platinum and silver.
Catalytic converters refine the exhaust of your vehicle via chemical reaction converting harmful/highly toxic gasses to less toxic ones. The trend nowadays is to produce a more efficient emission control device that would strip most if not totally eliminate the waste products of internal combustion engines. There are currently vehicles that are powered both by alternative fuel and gas that have the best emission control systems on earth but as the blog states, not all American states have them as part of their inventory. As it turns out, green cars are only available in those states that have the highest pollution control penalties.
So even if you do want to go green and got the cash to shell out for the extra they charge for these green machines, they might just not be available in your state, yet. Till all the states and eventually the world places enough laws to allow them or make them mandatory, you might have to wait a few more years for you to get one parked into your car as we all try to lower our carbon footprints in the future.