Set to blend practicality with distinctive looks the DecaDeca features a boxy, upright body with wide-opening doors and a highly versatile interior.
Lightweight seats can be quickly removed to make the most of DecaDeca's utility while under the bonnet a 660cc engine is said to offer 'performance and economy'.
The DecaDeca will be joined on stage by the 'e:S' and 'Tanto Exe'.
e:S is a sub-light hatch weighing in at just 700kg and will take on the likes of Suzuki Alto.
Meanwhile, the 4WD Basket Concept Tanto Exe targets young families with its roomy interior.
The fourth and final concept remains a mystery. All will be revealed when the Tokyo Motor Show opens next Monday.