In the US market, the new Rio Sedan will be offered in LX, EX and range-topping SX trim grades, but Australian variant names will likely mirror the local S, Si and SLi badges.
Power for the US models will come from a direct-injected 100kW 1.6 litre four-cylinder petrol engine, although engines ranging from a 51kW three-cylinder 1.1 litre diesel to a 80kW 1.4 litre four-cylinder petrol engine have been slated for international models.
Paired with either a six-speed manual or six-speed automatic transmission, Kia says the 1.6 litre petrol engine will return city-driving figures of 7.8 l/100km, and 5.8 l/100km on the highway.
In a first for Kia, the Rio is also equipped with ISG (idle stop and go) technology, switching off the engine when the vehicle is not in motion.
The 2012 Rio Sedan is larger than the model it will soon replace. Its wheelbase is 70mm longer, and the body measures 4366mm long overall.
It is also 25mm wider, offering increased interior space with 45mm more front legroom.
Standard safety features across the Rio range will include three-point seatbelts all-round, electronic stability control, four-wheel ABS, hill-start assist and vehicle stability management.
Although the sedan is expected to join the hatch when it launches in Australia later this year, local specifications will be revealed closer to launch.