A two-seat aluminium liftback that beat the Prius to North American showrooms, then returned as a sedan, a hatch and an electric crossover.
The Honda Insight is a model that began as a two-seat hybrid liftback in 1999, returned as a hybrid sedan in 2018, and was revived in 2026 as an electric crossover. Its first generation was the most fuel-efficient petrol car sold in the United States until 2015.
Honda's Insight has worn more body shapes than most nameplates, moving from a two-seat liftback to a five-door hatch, a sedan and finally an electric crossover. Each generation tackled the same question of how affordable a hybrid could be, and each answered it in a different way.
Where did the Honda Insight come from?
The name first appeared in 1999 on a two-seat liftback, and later editions brought a five-door hatch, a sedan and a battery-electric crossover. The early fuel economy headlines belonged to the first generation alone.
The original car was based on the Honda J-VX concept shown at the 1997 Tokyo Motor Show. It went on sale in Japan in November 1999 as the first production vehicle with Honda's Integrated Motor Assist system, and it arrived in North America that December.
The Insight became the first hybrid sold in North America in December 1999. The Toyota Prius followed seven months later, which gave Honda a short head start in a market that would later be dominated by the Prius.
A two-seat aluminium liftback that beat the Prius to North American showrooms and then reinvented itself four times.
How did the first-generation Insight work?
The first-generation Insight paired a 1.0-litre three-cylinder petrol engine with a motor that boosted performance. The engine rated 67 hp (50 kW; 68 PS), and the motor added 10 kW (13 hp), giving 73 hp (54 kW; 74 PS) at 5700 rpm when both were working together.
The motor sat on the crankshaft, and it acted as a generator during braking and deceleration to recharge the battery. Behind the seats sat a pack of 120 D-size 1.2-volt nickel-metal hydride cells, wired to give a nominal 144 volts. When the car stopped at a light, the engine switched off, and the motor restarted it almost instantly.
Honda also cut weight aggressively. The car used a lightweight aluminium monocoque, aluminium front brake calipers and rear brake drums, and aluminium wheels, while the fuel tank was plastic. The result was a body weight less than half that of the contemporary Civic three-door, and the manual car weighed 838 kg (1,847 lb) without air conditioning.
Aerodynamics were just as important. The car had a drag coefficient of 0.25, which made it the most aerodynamic production car at the time, and the lack of a rear seat allowed the body to taper sharply behind the driver.
How efficient was the first Insight?
The first Insight carried an EPA highway rating of 61 mpg-US (3.9 L/100 km; 73 mpg-imp) and a combined rating of 53 mpg-US (4.4 L/100 km; 64 mpg-imp). Until December 2015 it was the most fuel-efficient petrol car available in the United States without plug-in capability, when the 2016 Toyota Prius Eco took the title.
Independent figures were even more striking. Car and Driver won a contest against several magazines on a 195-mile (314 km) drive from Columbus, Ohio to Detroit, averaging 121.7 mpg-US (1.933 L/100 km; 146.2 mpg-imp) with a Ford Excursion shielding the car. A two-year test of an air-conditioned car over 40,000 miles (64,000 km) averaged 48 mpg-US (4.9 L/100 km; 58 mpg-imp).
The EPA changed its testing method from the 2008 model year. Under the revised ratings the manual 2000 car scored 61 mpg-US on the highway, 49 in the city and 53 combined, which showed how far testing rules could move the numbers.
In European testing the car reached a combined figure of 69.2 mpg-US, a result that remained unbeaten among UK petrol cars.
Why did the first-generation Insight stop selling?
Honda planned to sell 6,500 first-generation Insights a year, but the car achieved total global cumulative sales of 17,020 over seven years. The aluminium body made it expensive to build, and it was never designed for high-volume sales. Its real purpose was to act as a test car for hybrid technology and a gauge for new buyer habits.
Honda stopped UK sales as early as December 2005, and production halt was announced in May 2006. The company had already filled the gap with the Civic Hybrid in 2002, and Toyota's redesigned Prius followed in 2003 as a 2004 model.
The first Insight also collected awards and competition wins. It won the International Engine of the Year award for 2000 and held the sub-1 litre class for six years, and it was named Greenest Vehicle of the Year by the American Council for an Energy-Efficient Economy in 2000, 2002, 2003 and 2006.
What changed in the second-generation Insight?
The second generation arrived in 2009 as a five-passenger, five-door hatchback on a dedicated hybrid platform, which also underpinned the CR-Z. Honda chose the hatch to suit European buyers, and the wedge shape drew comparisons with the second-generation Prius.
The engine was a 1.3-litre i-VTEC four-cylinder rated at 98 hp (73 kW) at 5800 rpm, with 123 lb ft (167 N m) of torque between 1000 and 1700 rpm. The motor added up to 13 hp (10 kW) and 58 lb ft (79 N m), and the car used the fifth generation of Honda's IMA system, which was 19 percent smaller and 28 percent lighter than the previous unit.
A 1.5-litre engine, borrowed from the CR-Z, was offered in the Insight Exclusive from 2013. It produced 121 bhp (90 kW; 123 PS) with the motor, and it was paired with a continuously variable transmission. The 1.3-litre base model kept the lower price and the better economy.
The 2012 facelift brought larger air intakes, new headlights and taillights, and a thinner rear spoiler. Honda also added rear legroom and headroom, a rear camera and a larger cupholder design, and the EPA ratings rose by about one mpg in each category.
Did the second-generation Insight sell well?
The second generation sold strongly in Japan, where it began sales on 6 February 2009 and became the best-selling vehicle in April that year, the first hybrid to take the title. Japanese sales reached 93,283 in 2009, and the car passed 100,000 sales within a year of launch.
In the United States the car went on sale on 24 March 2009 as a 2010 model, and it was the least expensive hybrid available there. US sales were 20,572 in 2009 and 20,962 in 2010, but the Prius remained far ahead. Honda cut the entry price for the 2011 model year to attract younger buyers.
Elsewhere the car found buyers too. It launched in the UK in April 2009 and in Australia from December 2010, where it was the cheapest hybrid. Malaysia, South Korea and Singapore followed, and Singapore recorded 4,568 sales in 2011 as the best-selling hybrid there.
Why did the second generation end?
Honda announced on 28 February 2014 that production of the second-generation Insight would end after the 2014 model year. Sales had weakened badly, and dealer stocks stood at 237 days of supply against a typical 60 days.
Reviewers had been mixed on the car. Edmunds praised its ride and enjoyable handling, while others pointed to its rear seat, road noise and engine. Top Gear listed it among the worst cars you could buy in October 2014, and the Insight's fuel figures were also overtaken by the Prius.
What did the third-generation Insight become?
The third generation was a four-door sedan based on the tenth-generation Honda Civic. Honda showed a prototype at the 2018 North American International Auto Show, and the production car followed at the New York International Auto Show that year.
It used a 1.5-litre Atkinson-cycle petrol engine with a two-motor hybrid system and a lithium-ion battery pack. The car went on sale in the United States in June 2018 as a 2019 model, reached Mexico on 6 September 2018, and launched in Japan on 13 December 2018.
Honda projected 55 mpg-US (4.3 L/100 km; 66 mpg-imp) in the city and 49 mpg-US on the highway for the LX and EX trims, with 52 mpg-US combined. The top Touring trim was rated lower at 51 mpg-US in the city, 45 mpg-US on the highway and 48 mpg-US combined, because of its extra weight and equipment.
The third generation earned the 2019 Green Car of the Year award. Honda announced in April 2022 that it would end the Insight after the 2022 model year, with production finishing in June. A new Civic Hybrid took its place in the range.
What is the fourth-generation Insight?
The fourth generation was unveiled in March 2026 and launched on 16 April 2026. Unlike the earlier cars, it is a fully battery-electric crossover SUV based on the Honda e:N2, and sales were limited to 3,000 units.
The new model marks a clear break from the hybrid line that defined the nameplate. It keeps the Insight name for a car that is built around battery power rather than a petrol engine with a motor.
What are the Honda Insight specifications?
The Insight ran through four very different designs, so the table below picks the figures that best show how each generation differed from the others.
| Specification | Detail |
|---|---|
| First generation body | Three-door, two-seat liftback, 1999 to 2006 |
| First generation size | 3,945 mm (155.3 in) long; wheelbase 2,400 mm (94.5 in) |
| First generation engine | 1.0-litre three-cylinder, 67 hp (50 kW; 68 PS) |
| Motor assist | 10 kW (13 hp), 73 hp (54 kW; 74 PS) combined |
| Battery | 120 NiMH cells, nominal 144 V, 6.5 Ah |
| Drag coefficient | 0.25 |
| First generation weight | 838 kg (1,847 lb) manual, no air conditioning |
| First generation economy | 61 mpg-US (3.9 L/100 km; 73 mpg-imp) highway, 1999 rating |
| Second generation body | Five-door, five-seat liftback, 2009 to 2014 |
| Second generation engine | 1.3-litre i-VTEC, 98 hp (73 kW); 1.5-litre 121 bhp (90 kW) |
| Third generation body | Four-door sedan, 2018 to 2022 |
| Third generation engine | 1.5-litre Atkinson-cycle petrol with two-motor hybrid |
| Fourth generation | Battery-electric crossover SUV, 2026, 3,000 units |
How did the 2010 Insight compare with the Prius on the road?
In Car and Driver's 2010 comparison, the Insight reached 60 mph in 10.3 seconds against 10.0 for the Prius, and it stopped from 70 mph in 181 feet against 182 feet. The Prius was quicker in a quarter mile and returned better mpg over a 600-mile test.
The Insight's average fuel economy during that controlled evaluation was 38 mpg-US (6.2 L/100 km; 46 mpg-imp), while the Prius managed 42 mpg-US (5.6 L/100 km; 50 mpg-imp). Car and Driver still chose the Insight as its preferred car for its fun-to-drive character.
That verdict rested on handling, steering, braking and a paddle-shifted transmission, which gave the Insight a more engaging feel than the Prius. The result showed that the smaller hybrid could compete on enjoyment even while trailing on the numbers.
How did the second-generation IMA battery work?
The Insight's IMA battery was a flat nickel-metal hydride pack under the cargo floor between the rear wheels. Made by Sanyo, it used 84 modules for a nominal system voltage of 100.8 volts and a nominal capacity of 5.75 ampere hours.
Its modules delivered 30 percent more power density than those in the second-generation Civic Hybrid. The battery recharged itself by scavenging engine power when needed and through regenerative braking, and its electronics and cooling sat inside the pack.
What was ECO ASSIST?
ECO ASSIST coloured the background of the digital speedometer to show how efficiently the driver was working, turning green for smooth driving and blue for aggressive starts and stops. A dedicated ECON button traded a little performance for better economy.
In ECON mode the Idle Stop feature engaged sooner, the air conditioning favoured recirculation and the fan speed was reduced. The system also limited power and torque by approximately 4 percent, though full response was still available at wide-open throttle.
Frequently asked questions
How many first-generation Honda Insights were built?
Honda sold 17,020 first-generation cars in total over seven years of production. The company had planned 6,500 a year, so the sales figure fell short of the original target.
Was the Insight the first hybrid in the United States?
The Insight was the first mass-produced hybrid sold in the United States, and it was the first hybrid available in North America in December 1999. The Prius followed seven months later.
How much did a replacement Insight battery cost?
As of June 2008, a replacement battery cost US$1,968 and installation was around US$900. Aftermarket large-capacity NiMH packs were also offered from about 2010.
Did the Insight ever win a rally?
Yes. The car took five Formula 1000 Rally wins in the UK in 2006, enough for the Class A title. In 2011 one also won the hybrid class of the RAC Future Car Challenge from Brighton to London.
