The Toyota Aqua II, specifically the 1.5L (116 Hp) Hybrid E-Four e-CVT model, represents a significant evolution in Toyota’s compact hybrid offerings. Introduced in July 2021 and continuing through September 2025, this variant builds upon the success of the first-generation Aqua (known as the Prius c in North America) with enhanced efficiency, updated technology, and the addition of all-wheel drive. Positioned as a mid-range option within the Aqua II lineup, it aimed to provide a balance between affordability, fuel economy, and all-weather capability. The Aqua II is built on Toyota’s GA-B platform, a key component of the TNGA (Toyota New Global Architecture) philosophy, emphasizing improved structural rigidity and driving dynamics.
Technical Specifications
| Brand | Toyota |
| Model | Aqua |
| Generation | Aqua II |
| Type (Engine) | 1.5L (116 Hp) Hybrid E-Four e-CVT |
| Start of production | July, 2021 |
| End of production | September, 2025 |
| Powertrain Architecture | FHEV (Full Hybrid Electric Vehicle) |
| Body type | Hatchback |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 3.26-3.29 l/100 km (72.2 – 71.5 US mpg) |
| Fuel consumption (extra urban) | 3.06-3.15 l/100 km (76.9 – 74.7 US mpg) |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 10.3 kg/Hp |
| Weight-to-torque ratio | 9.9 kg/Nm |
| Battery technology | Nickel-metal hydride (NiMH) |
| Electric motor power (1) | 80 Hp |
| Electric motor torque (1) | 141 Nm (104 lb.-ft.) |
| Electric motor model/code (1) | 1NM |
| Electric motor location (1) | Integrated into the transmission |
| Electric motor power (2) | 6.4 Hp |
| Electric motor torque (2) | 52 Nm (38.35 lb.-ft.) |
| Electric motor model/code (2) | 1MM |
| Electric motor location (2) | Rear axle, Transverse |
| System power | 116 Hp |
| Engine Power | 91 Hp @ 5500 rpm |
| Engine Torque | 120 Nm @ 3800-4800 rpm (88.51 lb.-ft. @ 3800-4800 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | M15A-FXE |
| Engine displacement | 1490 cm3 (90.93 cu. in.) |
| Number of cylinders | 3 |
| Engine configuration | Inline |
| Cylinder Bore | 80.5 mm (3.17 in.) |
| Piston Stroke | 97.6 mm (3.84 in.) |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Kerb Weight | 1190-1230 kg (2623.5 – 2711.69 lbs.) |
| Max. weight | 1505 kg (3317.96 lbs.) |
| Max load | 275-315 kg (606.27 – 694.46 lbs.) |
| Fuel tank capacity | 36 l (9.51 US gal | 7.92 UK gal) |
| Length | 4050 mm (159.45 in.) |
| Width | 1695 mm (66.73 in.) |
| Height | 1505 mm (59.25 in.) |
| Wheelbase | 2600 mm (102.36 in.) |
| Front track | 1480 mm (58.27 in.) |
| Rear track | 1485 mm (58.46 in.) |
| Ride height (ground clearance) | 155 mm (6.1 in.) |
| Minimum turning circle | 10.4 m (34.12 ft.) |
| Drivetrain Architecture | All wheel drive (4×4). FHEV. ICE drives front wheels, electric motors drive front and rear wheels. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears | automatic transmission e-CVT |
| Front suspension | Independent type McPherson |
| Rear suspension | Double wishbone |
| Front brakes | Ventilated discs |
| Rear brakes | Drum |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 185/65 R15 |
| Wheel rims size | 6J x 15 |
Powertrain & Engine Architecture
The heart of the Aqua II 1.5L Hybrid E-Four is Toyota’s 1.5-liter M15A-FXE inline-three cylinder engine. This engine utilizes a multi-port fuel injection system and operates on the Atkinson cycle, prioritizing fuel efficiency over outright power. The engine produces 91 horsepower at 5500 rpm and 120 Nm (88.51 lb-ft) of torque between 3800 and 4800 rpm. Crucially, this engine is paired with Toyota’s Hybrid Synergy Drive system. This system incorporates two electric motors – a primary motor (1NM) integrated with the e-CVT and a secondary motor (1MM) driving the rear axle. The primary motor delivers 80 horsepower and 141 Nm of torque, while the rear motor contributes 6.4 horsepower and 52 Nm. The combined system output is 116 horsepower. The Nickel-metal hydride (NiMH) battery pack provides energy storage for the electric motors. The e-CVT (electronically controlled continuously variable transmission) seamlessly blends power from the engine and electric motors, optimizing fuel efficiency and providing smooth acceleration.
Driving Characteristics
The 1.5L Hybrid E-Four offers a comfortable and efficient driving experience. While not designed for sporty performance, the combined output of the engine and electric motors provides adequate acceleration for everyday driving situations. The e-CVT contributes to a smooth, linear power delivery, although it can sometimes feel less responsive than a traditional automatic transmission. The addition of the rear electric motor provides enhanced traction, particularly in slippery conditions, making the E-Four variant a more confident choice in inclement weather. Compared to the standard front-wheel-drive Aqua II, the E-Four model exhibits slightly reduced fuel economy due to the added weight and complexity of the all-wheel-drive system. However, the benefits of improved handling and stability often outweigh this slight compromise.
Equipment & Trim Levels
The Aqua II 1.5L Hybrid E-Four typically came standard with features such as automatic climate control, a touchscreen infotainment system with smartphone integration (Apple CarPlay and Android Auto), Toyota Safety Sense (including pre-collision system, lane departure alert, and adaptive cruise control), and power windows and locks. Interior upholstery was generally cloth, with optional upgrades to synthetic leather available on higher trim levels. Optional extras included a premium audio system, navigation system, and parking sensors. The E-Four trim often included unique exterior styling elements, such as distinctive alloy wheels and badging.
Chassis & Braking
The Aqua II utilizes a McPherson strut front suspension and a double wishbone rear suspension, providing a comfortable ride and predictable handling. The front brakes are ventilated discs, while the rear brakes are drums – a cost-saving measure common in this segment. The electric power steering provides light and precise steering feel. The E-Four model benefits from the added stability provided by the all-wheel-drive system, which helps to distribute weight and improve cornering grip. ABS (Anti-lock Braking System) is standard, enhancing braking performance and safety.
Market Reception & Comparison
The Toyota Aqua II 1.5L Hybrid E-Four was generally well-received by critics for its fuel efficiency, practicality, and the added security of all-wheel drive. It competed primarily with other subcompact hybrids, such as the Honda Fit Hybrid and Nissan Note e-Power. Compared to the standard Aqua II, the E-Four model commanded a slightly higher price but offered a compelling value proposition for buyers in regions with harsh winters or challenging road conditions. Fuel economy figures were consistently praised, with real-world tests often exceeding the official ratings. Reliability was also a strong point, as expected from a Toyota hybrid.
Legacy
The Toyota Aqua II 1.5L Hybrid E-Four has established itself as a reliable and fuel-efficient option in the used car market. The Hybrid Synergy Drive system has proven to be exceptionally durable, with many examples exceeding 200,000 miles without major issues. The NiMH battery pack typically lasts for 8-10 years, and replacement costs are relatively reasonable. The E-Four variant remains a popular choice for buyers seeking a compact, economical, and all-weather capable vehicle. Its combination of fuel efficiency, practicality, and Toyota’s reputation for reliability ensures its continued appeal in the years to come.
