Nissan Leaf

The Nissan Cube-derived EV-01 test car was Nissan's first prototype with the all-electric drive train later used in the Leaf.

The EV-12 test car was based on the Nissan Tiida/Versa.

Rear

Dashboard: power meter at the top which shows either battery usage or battery charging via regenerative braking, battery temperature at left, at the center is indicated a time of 4:30 to full charge, at the right is indicated a 101 km range, at the far right the battery health indicator at 12/12.

Shifter knob

Nissan sought to make the Leaf appealing to mainstream drivers by giving it a familiar five-door hatchback design.[11] The body has a sharp V-shape design with large, up slanting headlights that split and redirect airflow away from the door mirrors, and the bottom of the car has aerodynamic panelling.[12] The battery, the heaviest part of most electric vehicles, is situated below the seats and rear foot space, keeping the center of gravity as low as possible and giving the car better structural rigidity than a conventional five-door hatchback.[9]

The Leaf is powered by an electric synchronous motor with 80 kW (107 hp) and 280 N⋅m (207 ft⋅lb) driving the front wheels. The Leaf was initially equipped with a 24 kWh lithium ion battery, later increased to 30 kWh.[13] The battery is manufactured by Automotive Energy Supply Corporation. It's guaranteed for eight years or 100,000 miles in the USA,[14] and 100 000 km or 5 years in Europe.[15]

There is no active cooling of the battery pack, only passive cooling by radiation.[16]

There is a battery refurbishment program in Japan, but not in the US.[17]

According to a 2015 report by Warranty Direct, of 35,000 Leafs sold in Europe, three had had a battery failure, compared to a failure rate 25 times higher for internal combustion engined cars.[18]

Nissan reports the 2011 Leaf has a drag coefficient of Cd=0.29 and the 2013 model Cd=0.28. The Leaf is generally cheaper to operate than gasoline and hybrid cars.[19] However, since the Leaf costs significantly more than similar gasoline-powered vehicles, it may take a long time for the fuel savings to cancel out the increased initial cost, even after government incentives for plug-in electric vehicles.[20]

The body features bulging headlamp enclosures that direct wind away from the side mirrors, reducing drag and noise.[14]

Some trims initially came equipped with the telematics system CarWings. From 2011 to 2015 this used the 2G cellular network. 2G has been decommissioned in many areas, requiring an upgrade of the telematic control unit to use newer networks.[21] Rebranded NissanConnectEV in 2016, it is provided free of charge to owners, if equipped, depending on year and trim. As of 2017 it offers GPS data for routing, and for locating charging stations. It may also provide two-way communication with the car which enables remote control of the climate system, and monitoring of charging status.[22]

Nissan electric vehicles has existed since 1946 and the Leaf was preceded by the Altra, and the Hypermini.

The United States Environmental Protection Agency (EPA) rated it 21.2 kWh/100 km and had a range of 73 miles. It is 175 km (109 miles) on the New European Driving Cycle (NEDC). US-market S and SV trims had an SAE J1772 connector for (120/220 volts AC).[23] Using mains electricity and the included cable, the car regains about five miles of range per hour. The SL trim had a CHAdeMO port with which it can be charged from fully discharged to 80% capacity in about 30 minutes.[24] Nissan warns that if fast charging is the primary way of recharging, then the normal and gradual battery capacity loss is about 10% more than regular 220-volt charging over a 10-year period. Other companies make compatible charging stations, and companies and local government have various initiatives to create electric vehicle networks of public charging stations.[25]

The 2011/12 model Leaf has a top speed of over 150 km/h (93 mph). The motoring press has reported a 0 to 60 mph (97 km/h) acceleration time of 9.9 seconds.[9] About a dozen Leaf Nismo RC (Racing Competition) vehicles were produced, with the same motor but otherwise optimized for racing.

By March Nissan had plants at Smyrna, Tennessee, Oppama, Japan, and Sunderland, England,[26] with production of 150,000, 50,000, and 50,000 respectively.

The 2013 Leaf has extended range due to a more efficient heating system, better regenerative braking, weight reduction, and improved aerodynamics.[27] The EPA rating is 121 km (75 miles), a slight increase from 117 km (73 miles) in 2011 and 2012 models also due to technicality in the rating system.[5]

The 2013 model year Leaf has a dashboard display of the battery's charge percentage. A 6.6-kW onboard charger, available as an extra-cost option on the base model, reduces charging times using 240-volt power, so a charge from empty to full takes about four hours, instead of seven.[28] The onboard charger is more compact and located under the hood, increasing cargo volume.[29]

In November Nissan demonstrated on public roads a Leaf based driverless car[30]

There are three trim levels. A new trim level, Leaf S, has a lower price and 16-inch steel wheels and fewer accessories.[28]

In Europe Nissan offered a battery leasing option for all trims produced at Sunderland[31] which lowered the price.

The official EPA range for the 2014 and 2015 model year Leaf, increased from 121 to 135 km (75 to 84 miles).[32]

The 2014 Leaf is largely the same as the 2013 model year, except[33] for standard rearView monitor and updated EV-IT functionality with voice destination entry and SMS readout.

In China, Dongfeng-Nissan's Leaf-based Venucia e30 went on sale in September.[34]

Beginning in late 2016, all three trims (S, SV, and SL) came equipped with both charging receptacles.[35] A larger 30 kWh battery in the US-market SL and SV trims boosted range to 172 km (107 miles).[36]

The S trim initially kept the 24 kWh battery found in earlier Leafs, and received the upgrade midway through the 2016 model year.[35]

With the new battery pack Nissan extended the warranty to 96 months or 160,000 km (100,000 miles).[37] This means that if a car lost four of the 12 bars on its capacity gauge before that period is up, Nissan would replace or repair the battery free of charge.

Global sales in 2017 fell to about 47,000 units, in anticipation of the second generation.[38] As of January 2018, the Leaf was available in more than 60 countries in four continents.[39]

In February 2014, the Automotive Science Group (ASG) published the result of a study conducted to assess the life-cycle of over 1,300 automobiles across nine categories sold in North America. The study found that among advanced automotive technologies, the Nissan Leaf holds the smallest life-cycle environmental footprint of any model year 2014 automobile available in the North American market with minimum four-person occupancy. The study concluded that the increased environmental impacts of manufacturing the battery electric technology are more than offset with increased environmental performance during operational life. For the assessment, the study used the average electricity mix of the U.S. grid in 2014.[40]

In December 2014, Nissan announced that Leaf owners have accumulated together 1 billion kilometers (625 million miles) driven. This amount of electric distance translates into avoiding 180 million kilograms of CO
2 emissions by driving an electric car in comparison to travelling with a gasoline-powered car.[41] In December 2016, Nissan reported that Leaf owners worldwide achieved the milestone of 3 billion kilometers (1.9 billion miles) driven collectively through November 2016, saving nearly 500 million kilograms of CO
2 emissions.[42]

Models with an on-board 3.6 kW charger can be fully charged in eight hours from an appropriate 240-volt charger, while models with an on-board 6.6 kW charger[28] can be fully recharged in 4 hours.

In July 2019 Green NCAP assessed 2019 40 kWh N-CONNECTA Nissan Leaf, noting that the eco driving mode made no noticeable difference in energy consumption, and noting that the car's average and maximum energy consumption were bested by Hyundai Ioniq.

Green NCAP test results
Nissan LEAF (2019)[43] 40 kWh N-CONNECTA 4x2 electric automatic
Test	Points
Overall:
Clean Air Index: 10/10 Laboratory Tests HC CO NOx PN 9.0/9 Cold test 3.0/3 Warm test 3.0/3 Eco Mode 3.0/3 Sport Mode 9.0/9 Highway Road Test HC CO NOx PN 7.0/7 On-Road Drive Robustness
Energy Efficiency Index: 8.5/10 Laboratory Tests Energy Efficiency 10.0/10 Cold test 3.0/3 Warm test 3.0/3 Eco Mode 3.0/3 Sport Mode 10.0/10 Highway

After the original battery packs degrade, owners may wish to refurbish, replace, or upgrade their battery packs instead of purchasing a new electric car. However, there are few options globally for this process. In August 2019, Automotive News reported that "more than a year after launching a battery refurbishment program for Leaf customers in Japan, Nissan remains noncommittal about offering the program in the brand's largest market — the U.S."[44] Nissan previously offered a replacement battery back for the Leaf for $5,499 plus installation in the U.S.,[45] but then later raised the price to $8,500.[44] As of January 2020, Leaf owners began reporting that Nissan had lowered the cost of the 24kWh batteries to $5,500, with a $1,000 trade-in credit for the return of the original battery, making the battery $4,500 plus the cost of labor and tax.[46]

NHTSA rates the 2011 and 2012 model years as five out of five stars overall. It won the Insurance Institute for Highway Safety's "Top Safety Pick" in 2011. It received top ratings of "Good" for front, side, and rear impact crash tests, and also on rollover protection. All injury measurements except one were rated good, indicating a low risk of significant injuries in crashes according to the scale of severity employed in the IIHS's testing.[47] The European New Car Assessment Programme (Euro NCAP) awarded the Leaf the highest five-star car safety rating, earning the following ratings for each criterion:

Euro NCAP test results
Nissan Leaf (2012)[48]

Test	Points	%
Overall:
Adult occupant:	32	89%
Child occupant:	40	83%
Pedestrian:	23	65%
Safety assist:	6	84%

In the case of an accident in which the airbags are deployed, the Leaf automatically disconnects the high-voltage system. In December 2010, Nissan also advised first responders to manually disconnect both the high voltage and 12 V systems before performing any first response actions.[49]

The Nissan Leaf's battery pack is shielded from crash damage by structural steel reinforcement.[50] In December 2011, Nissan reported that none of the around two dozen Leafs destroyed in the 2011 Tōhoku earthquake and tsunami caught fire, and that their batteries remained intact.[51] As of December 2011, no fires after a crash have been reported in the U.S. associated with the Leaf or other plug-in electric cars available in the market.[52]

In 2011 electric vehicle warning sounds, to alert pedestrians of the Leaf's quiet movement relative to traditional motor vehicles, were introduced in anticipation of legislation mandating it in Europe, Japan, and America.[53] This sound varies according to direction and acceleration, and is only active at low speeds. It can be disabled on some models. Actual legislation requiring this did not come into effect until 2019 in the EU; it will take effect in September 2020 in the US.[54]

At the 2010 Washington Auto Show, the Leaf was given the Green Car Vision Award by the Green Car Journal, which said that the Leaf "will provide the features, the styling, and the driving experience that will meet the needs of a sophisticated and demanding market, while producing zero localized emissions and requiring no petroleum fuels." Popular Mechanics, upon awarding the Leaf its 2010 Breakthrough Award, explained that the Nissan Leaf is "not the first pure EV, but [...] hits the mainstream like none of its predecessors." Popular Mechanics also alluded to the Leaf's 160 km (100 miles) range, which is said to be "enough for most commuters for the price of an average vehicle – and with a much lower operating cost than gasoline-powered vehicles."[55]

Other awards received by the Leaf include the 2011 European Car of the Year,[56] EV.com's 2011 EV of the Year,[57] 2011 Eco-Friendly Car of the Year by Cars.com,[58] 2011 Green Fleet Electric Vehicle of the Year,[59] it was listed among the 2011 Greenest Vehicles of the Year by the American Council for an Energy-Efficient Economy,[60] also listed by Mother Earth News among its "Best Green Cars" of 2011,[61] and also was ranked first in Kelley Blue Book Top 10 Green Cars for 2011.[62] The Leaf won the 2011 World Car of the Year,[63] and was a finalist for the 2011 World Green Car.[64] Ward's Auto listed the Leaf's 80 kW electric motor in Ward's 10 Best Engines for 2011.[65] Until October 2011 the Leaf was ranked as the most efficient EPA certified vehicle for all fuels ever.[66] In December 2011, the Leaf was awarded with the 2011–2012 Car of the Year Japan at the Tokyo Motor Show.[67]

An Electric Production Class was formed for the 2011 Pikes Peak International Hill Climb and Chad Hord raced a Leaf in the event.[68] The off-road racing driver ascended the 19.99 km (12.42 miles) course in 14 minutes and 33 seconds to win the class.[69] The interior of the car was removed and replaced with mandatory racing seats, safety harness, and a roll cage.[70]

European Leafs are offered in the following trim lines: Acenta, N-Connecta, and Tekna.

The N-Connecta adds from Acenta an intelligent around view monitor with moving object detection and front and rear parking sensors, part synthetic leather and cloth trim, heat pack with heated seats and heated steering wheel, 43 centimetre (17 inch) alloy wheels, and privacy glass.

Tekna adds from N-Connecta ProPILOT Advanced Driver Assistance System, Bose speakers, part leather seats with Ultrasuede trim, LED fog lamps with cornering function, and electronic parking brake.

The North American Leafs were initially sold in the S, SV and SL trim lines. For the 2019 model year, the S Plus, SV Plus, and SL Plus trims were added. The Mexican model arrived in 24 August 2018 as a 2019 model, and is offered in the S, SL, and SL Bitono trim lines.[88]