Two Japanese brands kicked off the hybrid car market a quarter century ago, and advancements since then have made modern hybrids more fuel-efficient than ever. Hybrid cars have evolved by light-years since the Honda Insight and Toyota Prius became the first and second hybrid cars available in the USA, respectively, back in the late 90s and early 2000s.
Toyota
Toyota is a Japanese automaker founded in 1937 that has developed a reputation for reliability across a multitude of segments, from sports cars and family sedans to pickup trucks and off-roaders. Famous models from the brand include the Hilux, Land Cruiser, Camry, Crown, and Corolla, the latter being the world’s best-selling vehicle nameplate, with more than 50 million Corolla-badged vehicles being sold since it was first introduced. Toyota typically competes in the mainstream market, but is also famous for launching Lexus as a luxury sub-brand to take on Mercedes-Benz.
- Founded
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August 28, 1937
- Founder
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Kiichiro Toyoda
- Headquarters
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Aichi, Japan
- Owned By
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Publicly Traded
- Current CEO
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Koji Sato
In the 25 years since, hybrid engines have exploded in popularity and are now widely used in every segment. They’ve even gone on to power some of the fastest cars in the world. In 2025, Honda’s hybrid system is in its fourth generation, and Toyota’s is in its fifth. Most automakers are offering more hybrid products than ever, and even mild hybrid systems are being used as standard in many a vehicle lineup.
Let’s look at 10 ways your modern hybrid vehicle is helping to save you more gas than ever. If you’re currently driving an older hybrid model and you’re considering the switch to something brand new, you’ll find this a good update on what to expect.
These technologies were chosen specifically as some of the most prominent evolving tech at work in hybrid cars over the past few decades; we cover both regular hybrid and plug-in hybrid tech here.
Visual Coaches
Hybrid cars have had visual coaches and unique displays to help keep drivers engaged with the technology since their arrival. Today, the rollout of ever-growing and powered-up display systems are making these better than ever. Today’s hybrids offer excellent on-screen infographics to demonstrate how energy is being used in real time, how fuel efficiency responds to different driving habits, and even to provide coaching, tips and scoring to help drivers get the most out of their hybrid engine. Some hybrid-powered models use a special icon in the instrument cluster during braking to remind drivers that they’re regenerating energy while slowing down. Others use specialized animations to help drivers visualize the most optimal way to work their throttle pedal. This ultimately makes it easier for the driver to learn from their car what works best for maximum efficiency, which can add miles to every tank.
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Hybrids from Ford can give drivers a score every time they stop, encouraging them to use more electric braking for better efficiency. The Honda Accord Hybrid, for example, has a fixed LED display in the instrument cluster that shows the hybrid battery charge level at all times, helping drivers learn how to stretch its charge and save as much fuel as possible. Features like these help drivers get in sync with the way their hybrid cars work, and specifically, how they’re best driven to save gas.
One Pedal Driving
When EV’s hit the scene, the idea of one-pedal driving wasn’t far behind. Today, many EV drivers enjoy the ability to do most of their driving using just a single pedal, and only pressing the brake pedal when necessary. As the vehicle slows down when the throttle is lightened or released, the wheels drive the electric motors (instead of vice versa), and electricity is sent back into the battery. Plus, it makes the car easier and more relaxing to drive. The Chevrolet Bolt is a great example of one-pedal driving done right.
It’s only in recent years where the idea of one-pedal driving has started to make the shift into gas-electric hybrid vehicles, too. Today, one pedal driving – or at least a taste of it – is becoming more common in plug-in hybrid cars, like the Mitsubishi Outlander PHEV and Ford Escape PHEV. One pedal driving makes it easier to regenerate free electricity by braking more effectively, which improves efficiency.
Drive Modes
Not all that long ago, someone put a ‘SPORT’ button in a car to ramp up its shift points and throttle response, and the first ‘drive mode’ was born. Sort of. Today, drive modes do a lot more – and they’re integrated with more hybrid vehicle systems than ever. Almost every hybrid ships from the factory with an “ECON’ or “ECO’ mode, which is selectable by the driver because hybrid drivers like the ability to squeeze out a few extra MPGs with a click if they like. Earlier hybrids mainly used this function to ramp down throttle response and make it easier to save gas.
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Depending on equipment, modern hybrids can make further adjustments to the climate control system, ride height, and even AWD system to help eke more range from every tank. Drivers have an increasing ability to customize their own custom drive modes, right down to their preferred steering feel. It’s easier than ever to fine-tune your hybrid’s drive to your current intentions on the fly. You’ll find custom drive modes in virtually any new hybrid in 2025, including America’s most fuel efficient.
More Powerful Motors
Broadly, the electric motors used in hybrid cars are becoming more compact, more power-dense, and increasingly connected to more powerful batteries that help them push maximum performance. From the driver’s seat, more powerful motors means more torque at the tips of your toes, more of the time. That means easier acceleration without pushing the gas engine. The latest versions of hybrids like the Volvo XC90, Honda Accord, and Toyota Prius are the most powerful yet, with upgraded electric motors on board. Compared to previous versions, each of these has much more all-electric throttle response available, at a wider range of speeds, before the gas engine needs to engage. This not only helps drivers operate the car in EV mode across more situations, but also makes those situations more enjoyable, thanks to the added throttle response.
Heat Pumps
Heat pumps are an energy-efficient way to move heat from one place to another – and they’re commonly used in EVs to reduce the negative effects of cold temperatures on vehicle range. They’re slowly making their way into hybrids too, with the Toyota Prius and RAV4 Plug-In Hybrid models (which are no longer referred to as Prime) and Mitsubishi Outlander PHEV as two examples. Rather than relying solely on the combustion engine for heat, hybrids with heat pumps can make for big reductions in idling time, warm-up time, and energy usage during warm-up. By helping make more heat using less electricity (and gas), heat pumps are one way that hybrids are starting to work even harder for drivers in colder climates. As standard hybrids get more and more efficient, don’t be surprised to see heat pumps becoming even more commonplace. It’s all about making more heat with less energy.
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Electric Axles
There are various ways to equip a hybrid with AWD, and one of them is to use an electric axle. Electric axles are used in models from the Prius to the RAV4 Hybrid, the Hornet to the XC60, to facilitate four-wheel traction and maximum efficiency. Most AWD vehicles have an engine and transmission up front connected to the rear wheels by a few hundred pounds of heavy rotating parts sloshing around in a bunch of oil. With an electric axle, that’s all replaced by an electric motor on the axle – and in the case of hybrids, that is the rear axle. With an electric axle, there’s no physical connection between the hybrid engine and transmission, up front, and the rear wheels. Instead, the rear electric motor can apply power to the rear wheels with immediate torque in milliseconds – all with none of the mechanical losses, delay, or friction of a conventional system. By using a hybrid engine up front and an electric motor in the back, electric axles make it possible to turn more types of vehicles into hybrids more affordably, while saving drivers fuel along the way.
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Atkinson Cycle
Atkinson cycle engines have a special superpower that allows them to use the timing of their intake valves to manipulate the pressure inside their cylinders for maximum fuel efficiency. This makes them ideal for use in hybrid cars, where fuel efficiency is the main goal. The boosted efficiency comes at the expense of power, but that’s fine, since hybrid engines have electric motors which boost power to compensate. The Atkinson Cycle is a fascinating topic for gearheads, and for those who want to learn about it, here’s your chance. In the past 20 years or so, Toyota has made many advancements to their Atkinson Cycle hybrid engines, mainly by way of advancements to variable valve timing systems and associated electronic controls, as well as advanced materials and improved piston, valve and combustion chamber design.
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Integrated Starter Generator (ISG)
The Integrated Starter Generator (ISG) takes various names depending on the application, but the concept is simple: pull the alternator (a generator) and starter (a motor) from a regular engine, and replace them with a single machine that does the jobs of both, but much more powerfully. This jacked-up, all-in-one starter/generator is called the ISG, and it turns regular engines into powerful electrical generators. The advantage of an ISG is that it allows automakers to readily boost the power and efficiency of an existing engine, without having to develop a new one from scratch. You’ll find this ‘mild-hybrid’ tech in Volvos powered by the B5 engine, the latest version of the 2.0-liter turbo four-cylinder used in the Audi A4, in the straight-six mild-hybrid engine in the Mazda CX-90, and attached to the gas-burning engine in the Jeep Wrangler 4xe PHEV.
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GPS Integration
Modern hybrids can use GPS to save gas. Tapping into data from the navigation system, learning from your drive routes, and even anticipating hills and stop signs means your modern hybrid can preview the road ahead to make smarter decisions about how to save fuel. This could mean pre-emptively charging the hybrid battery ahead of an incoming climb, avoiding engine shut-off when a quick restart is anticipated, or increased use of a low gear and regenerative braking on hilly terrain.
You’ll find capabilities like these in various models, including BMW hybrids which use Anticipatory Hybrid Drive to optimize the interplay between the combustion engine and electric motors using real-time traffic data, navigation info, and driving style analysis. By using data and hardware already available to the vehicle, systems like these help drivers get more range from every tank.
Thermal Management
Engines are their most efficient when they’re warmed up. Once they are, they can be made even more efficient by controlling the temperature they operate at internally. Helping hybrids to heat up faster, run at the perfect temperature, and warm their occupants more quickly are more recent technologies like panel heating, electric coolant heaters, exhaust heat recovery systems, and even a 48-volt ‘booster’ heater in some high-end hybrids from Mercedes-Benz. Various hybrids also use grille shutters that can open and close to optimize aerodynamics for the vehicle’s current speed, or control airflow through the radiator to help the engine stay warm while using less energy, all of which improves the efficiency of the powertrain.
Sources: Porsche, BMW, Audi, Volvo, Kia, Hyundai, Honda, Toyota, Lexus
