jaunting car

from The Century Dictionary.

• noun A light two-wheeled vehicle, very popular in Ireland, having two seats extended back to back over the low wheels for the accommodation of passengers, a compartment between the seats, called the well, for the receipt of luggage, and a perch in front for the driver.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A kind of low-set horse-drawn open vehicle, used in Ireland, in which the passengers ride sidewise, sitting back to back.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun an open two-wheeled one-horse cart formerly widely used in Ireland