Daihatsu will show a new kei car concept at the 2015 Tokyo Motor Show at the end of the month. Called the Daihatsu D-Base concept, it’s likely to presage the replacement for the current Daihatsu Mira, which has been around since 2006.

The D-Base’s dimensions are right up against kei car regulations, measuring just 3.4 metres long, 1.48 metres wide and 1.49 metres high. The design features strong wheel arches, a stepped window line and “hidden” rear door handles, and should – barring the large wheels, flush front door handles and funky two-tone colour scheme – make it to production mostly intact.

The blue colour way extends inside, along with a two-spoke steering wheel, slim air vents, a digital instrument cluster, a large central infotainment display, bucket seats and a futuristic gearlever integrated into the armrest console. Again, expect a lot of this to make it on the showroom floor, minus some of the more showy bits.

Motivation comes from a 660 cc three-cylinder engine – as is typical in the segment – mated to a CVT automatic. Daihatsu has yet to release more details or output figures, but claims that with a lightweight body and a energy recuperation system, the D-Base is capable of achieving 3.0 litres per 100 km.

Normally, we would be excited by such news, as it could foreshadow a new Perodua model as well. However, the second national carmaker’s lineup is already filled up at the bottom end by the Axia, which is based on the Indonesian Daihatsu Ayla and Toyota Agya twins. It does leave some space above it for a slightly more upmarket model to slot below the Myvi, however, so who knows?