in a taxi
by taxi

She gets herself to the center and home by taxi.

If she left the city it was not by taxi.

The only way to get there is by taxi or car.

On a good day a trip by taxi from one end of town to the other takes nearly two hours.

He kept the other one to travel with him by taxi.

"I left the school in the middle of the night by taxi," she said.

The best way to get around town is either by taxi or on the metro.

The best way to get here is by taxi (around B$30).

She came by taxi, probably from the train station, just before eight.

"We're probably making better time on foot than we would by taxi."