Over the past 30 years, Huntington Beach, California-based Newport Convertible Engineering has tried to turn seemingly every car into a convertible, but its plans for the Tesla Model S electric car are even more ambitious than usual. NCE announced a four-door Tesla Model S convertible back in April, and now the company says it will be joined by a two-door version, as well as a two-door Model S coupe.

As with its previous convertible scheme for the popular Tesla Motors [NSDQ:TSLA] sedan, NCE claims an anonymous Chinese investor has already ordered 100 examples, but this time of two body styles. Whoever this person is, he or she must be as confident of Tesla's future in China as Tesla itself.

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NCE plans to build 600 copies of both the two-door convertible and coupe at its California headquarters as well as locations in Dubai, and Barcelona. It hopes to start production before the end of 2014.

The two-door convertible conversion starts at $25,000, but that price rises to $45,000 for a hard tonneau cover conversion, while the coupe starts at $35,000. Despite the seemingly more-complex task of removing two doors, these convertibles are actually $4,000 less than the four-door versions NCE previously showed.

Note, NCE previously tried to secure a commitment from Tesla for 5,000 cars to be delivered straight from the factory for conversion, but Tesla never agreed to this. Instead, Newport is encouraging customers to order their cars individually from Tesla, and have them shipped to one of its facilities to be modified.


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