The Leaf was leaked onto the internet via Twitter
The leaked images showed the car in full for the first time
Nissan's latest official preview image shows the car's aerodynamic form
The next-gen car, spotted testing earlier this year, is expected to have a 340-mile range
The brand has also confirmed the new Leaf will come with ProPilot semi-autonomous technology
Its design is clearly inspired by that of the new Micra
The 2018 Nissan Leaf will come with a 148bhp electric drivetrain, according to information leaked ahead of its 6 September reveal.
Specifications posted on automotive media and marketing site Autobytel last night, which have subsequently been removed, suggested that the new Leaf will have about 40bhp more than the outgoing model. They also showed that the car will have a 40kWh battery; 10kWh higher than the current one's largest option.
Although unconfirmed by Nissan, the information backs suggestions that the new Leaf will have substantially more range. It is predicted to be capable of 340 miles on one charge - more than double that of the old model.
Along with the improved drivetrain, this range improvement will have been possible as a result of the car's more slippery exterior. Nissan offered a glimpse of its aerodynamic performance in a preview picture, which showed a silhouette of the car with air lines passing over it (see below).
The upcoming all-electric hatchback was photographed by a Twitter user in a Nissan Oppama factory in Japan (see top and below), where production of the car will be handled, showing its exterior design in full for the first time.
Like the specifications, the pictures remain unconfirmed, but there's little doubt as to their authenticity because the cars pictured appear very similar to those officially previewed by Nissan and spotted by our spy photographers. They show a more angular nose, sharper headlights and sleeker bodyshape.
The new car's design appears to be inspired by the Micra, as shown by sightings of development cars (see gallery), with sharper lines on the body and a more aggressively stooped nose.
Nissan is aiming to make the Leaf the segment's most autonomous-capable model, with ProPilot Park its newest system. Using sonars and cameras, the car will be able to park itself in parallel, angled, front or straight back-in parking spots, handling throttle, braking and steering input.
This park assist system will come as part of the car's ProPilot technology, which also includes a single-lane semi-autonomous feature. It will be Nissan's most advanced autonomous model on sale.
When the future Leaf arrives on roads next year, it will lead Nissan's charge to grow EVs to represent 20% of sales by 2020.