Is it possible for a 2012 taxi to exist in late 2011?

I am starting to wonder because I rode on a 2012 Ford Fusion Taxi when I was heading to the airport in December of 2011. Driving a taxi is also a career that involves earning money

So, is it possible for a 2012 Taxi to exist in late 2011?
a) yes
b) no

When you answer, can you give me an explanation?

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