We recently reported on the unfortunate demise of the Bajaj 3-wheeler from the American market due to slow sales. Happily, a new brand of funky 3-wheelers is set to make its debut in the U.S. by way of Thailand. Tuk Tuk North America (TTNA) reports that its vehicles are currently undergoing EPA and NHTSA testing for road-use approval, though its line of trikes is reportedly already for sale for off-road use. Available in a number of passenger, cargo and truck body styles, the Tuk Tuk comes equipped with either a 200cc or 650cc version of a newly-designed, liquid-cooled four-stroke powerplant. This replaces the original two-stroker from which the vehicle received its funny-sounding name. TTNA also reports that its vehicles are available with both automatic and manual transmissions. Interestingly, the options page of the TTNA site shows an LPG kit which would convert the engine to run on dual fuels — both liquefied petroleum and gasoline.
Source: http://green.autoblog.com/2008/05/12/tuk-tuk-coming-to-american-roads-near-you/
3 Wheeled Cheese 
I might be intrested in purchasing a Tuk Tuk but would like information and pricing on them. I am located in Texas and not sure if there are any local dealership near by.
The only place I know of in the USA selling Tuk Tuk is ‘Tuk Tuk North America’ http://www.tuktuknorthamerica.com/
Alternatively you could find laws and regulations for driving a tuk tuk in the USA here: http://3wheeledcheese.com/2011/07/04/3-wheeler-laws-and-regulations-united-states-of-america/
Do let us know if you need any other information.
Ok where are they ???