Who cares if this car's used as an airport limo (NOT TAXI) in North America? Its a non-issue. In fact, I'd say its a good thing if a car's for such grueling uses. It means you can count on the car's longevity.
Europeans use Mercedes Benz E-Class's as taxis. I've even flagged down an S-Class in Germany. Does that mean they're bad cars?
The Town Car exemplifies (to this date) what American luxury is. No other car can recreate that regal era that is distinctly American. Plush leather. Bench seats. Steering mounted shifter. Big brash engine. The choice for presidents, business executives and celebrities. This car screams American luxury. And it is no piece of junk.