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BYD kei EV leaked ahead of Japan Mobility Show – 20 kWh Blade battery, 180 km WLTP, debuts tomorrow

BYD kei EV leaked ahead of Japan Mobility Show – 20 kWh Blade battery, 180 km WLTP, debuts tomorrow

The car above may seem like your everyday humdrum kei car, but you’re looking at an unprecedented assault on the Japanese market by a foreign carmaker. We’ve known that BYD has been working on an EV to fit the island nation’s city car regulations for a while now, but the little tyke has now been leaked ahead of its debut at the Japan Mobility Show this week, as reported by Autohome.

Sporting space-saving sliding doors, the as-yet-unnamed model’s milquetoast design is entirely in keeping with the segment, with wheels pushed to the edges, an upright glasshouse and flat front, sides and rear to maximise space while keeping within the class’ size limits – a scant 3.4 metres long and 1.48 metres wide. Upswept D-pillars and pill-shaped head- and taillights provide the minimum of visual intrigue.

The Chinese carmaker is looking to capitalise on the locals’ reluctance to electrify their lineups. The kei EV market, hitherto consisting of only the Nissan Sakura and Mitsubishi eK X EV, has only recently been enlivened by the Honda N-One e:, which offers a WLTP-rated range of 295 km through its 29.6 kWh battery.

According to Autohome, the BYD will instead deliver a range of just 180 km through its 20 kWh Blade lithium iron phosphate (LFP) pack. But the company surely has much more up its sleeve, given its leading position in EV technology development and a likely desire to one-up the N-One e:.

As for outputs, while kei cars are currently limited to 64 PS, that’s due to a gentlemen’s agreement among members of the Japan Automobile Manufacturers Association (JAMA) to prevent a horsepower war. Since BYD is obviously not a member, it presumably won’t have to adhere to this limit.

This would be the first time a foreign carmaker is choosing to build a car specifically to meet kei car regulations. smart came close by fitting narrower rear fenders to the original fortwo to meet the width restriction, creating the smart K.

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Jonathan Lee

After trying to pursue a career in product design, Jonathan Lee decided to make the sideways jump into the world of car journalism instead. He therefore appreciates the aesthetic appeal of a car, but for him, the driving experience is still second to none.

 

Comments

  • Jalil on Oct 28, 2025 at 10:37 am

    Direct competing Nissan Sakura and Mitsubishi eK X EV,
    These are bigger than Honda N one but still lack Japanese Kei favourite Digital Sliding doors.

    The cute larger Kei with sliding doors is Honda N-Van E. But it also lacks comfortable touch like the Daihatsu Tanto and Honda N Box Petrol.

    Thumb up 2 Thumb down 0
  • alldisc on Oct 28, 2025 at 3:39 pm

    The biggest issue is charging since most prospect buyers don’t live in landed properties and therefore would need to use public chargers which could be limited and time consuming. 180km range is good though, perhaps most kei cars users don’t even do 200km in a week.

    Thumb up 0 Thumb down 0
  • brainuse on Oct 28, 2025 at 8:19 pm

    good to see ccp cars challenging japs domestic market in their own turf

    Thumb up 0 Thumb down 0
 

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