The Toyota Sienta II, particularly the facelifted version introduced in September 2018, is a compact minivan primarily designed for the Asian market, notably Japan and Indonesia. While not officially sold in the United States, the Sienta occupies a unique niche as a small, versatile people-carrier offering seating for up to seven passengers in a relatively small footprint. The 2018 facelift brought styling updates and refinements to Toyota’s hybrid powertrain, enhancing fuel efficiency and overall practicality. This generation of the Sienta, running through August 2022, represents a significant evolution of the original Sienta concept, focusing on maximizing interior space and ease of use for families.
Toyota Sienta II (Facelift 2018): A Detailed Overview
The Sienta distinguishes itself from traditional minivans with its more car-like driving experience and compact dimensions. It’s positioned as an alternative to larger MPVs, appealing to urban dwellers who require flexible seating and cargo capacity without the bulk of a full-size minivan. The 1.5-liter hybrid variant, detailed here, exemplifies Toyota’s commitment to fuel efficiency and hybrid technology, offering a balance between performance and economy.
Engine & Performance
The 2018 Toyota Sienta 1.5 Hybrid utilizes Toyota’s Hybrid Synergy Drive system, a full hybrid electric vehicle (FHEV) powertrain. At its heart is the 1NZ-FXE 1.5-liter inline-four gasoline engine, producing 74 horsepower at 4800 rpm and 111 Nm (81.87 lb.-ft.) of torque between 3600-4400 rpm. This engine is paired with a 61 horsepower electric motor, integrated into the electronically controlled continuously variable transmission (e-CVT). The combined system output is rated at 101 horsepower.
The nickel-metal hydride (NiMH) battery pack, located under the front seats, provides energy to the electric motor, allowing for short periods of all-electric driving and assisting the gasoline engine during acceleration. This configuration results in a fuel-efficient vehicle, achieving approximately 4.4 liters per 100 kilometers (53.5 US mpg or 64.2 UK mpg) in urban driving conditions. The weight-to-power ratio of 13.7 kg/Hp (73.2 Hp/tonne) and weight-to-torque ratio of 12.4 kg/Nm (80.4 Nm/tonne) contribute to a responsive, albeit not particularly sporty, driving experience. The engine features a multi-port fuel injection system and a double overhead camshaft (DOHC) valvetrain, optimizing combustion efficiency.
Design & Features
The Toyota Sienta II is a five-door minivan offering seating for either five or seven passengers, depending on the configuration. Its boxy shape maximizes interior space, while the sliding rear doors provide easy access to the second and third-row seats. The 2018 facelift brought subtle changes to the exterior styling, including a revised front grille, updated headlights, and new alloy wheel designs.
Inside, the Sienta prioritizes practicality and functionality. The dashboard layout is straightforward, with a focus on ergonomics and ease of use. Key features include a comfortable seating arrangement, ample storage compartments, and a relatively spacious cabin for its size. Safety features, standard for the period, include Anti-lock Braking System (ABS) and electric power steering. The Sienta’s design philosophy centers around creating a versatile and family-friendly vehicle, prioritizing space and convenience over luxurious appointments. The vehicle’s dimensions – 4260 mm (167.72 in) in length, 1695 mm (66.73 in) in width, and 1695 mm (66.73 in) in height – reflect its compact minivan classification.
Technical Specifications
| General Information | |
| Brand | Toyota |
| Model | Sienta |
| Generation | Sienta II (facelift 2018) |
| Type (Engine) | 1.5 (101 Hp) Hybrid e-CVT |
| Start of production | September, 2018 |
| End of production | August, 2022 |
| Powertrain Architecture | FHEV (Full Hybrid Electric Vehicle) |
| Body type | Minivan |
| Seats | 5-7 |
| Doors | 5 |
| Performance Specs | |
| Fuel consumption (economy) – urban | 4.4 l/100 km (53.5 US mpg, 64.2 UK mpg, 22.7 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 13.7 kg/Hp (73.2 Hp/tonne) |
| Weight-to-torque ratio | 12.4 kg/Nm (80.4 Nm/tonne) |
| Electric & Hybrid Specs | |
| Battery technology | Nickel-metal hydride (NiMH) |
| Battery location | Under the front seats |
| Electric motor | 1 |
| Electric motor power | 61 Hp |
| Electric motor Torque | 169 Nm (124.65 lb.-ft.) |
| Electric motor location | Integrated into the transmission |
| System power | 101 Hp |
| Internal Combustion Engine Specs | |
| Power | 74 Hp @ 4800 rpm |
| Power per litre | 49.5 Hp/l |
| Torque | 111 Nm @ 3600-4400 rpm (81.87 lb.-ft. @ 3600-4400 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | 1NZ-FXE |
| Engine displacement | 1496 cm3 (91.29 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 75 mm (2.95 in.) |
| Piston Stroke | 84.7 mm (3.33 in.) |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Engine oil capacity | 3.7 l (3.91 US qt | 3.26 UK qt) |
| Coolant | 5 l (5.28 US qt | 4.4 UK qt) |
| Space, Volume & Weights | |
| Kerb Weight | 1380 kg (3042.38 lbs.) |
| Max. weight | 1765 kg (3891.16 lbs.) |
| Max load | 385 kg (848.78 lbs.) |
| Fuel tank capacity | 42 l (11.1 US gal | 9.24 UK gal) |
| Dimensions | |
| Length | 4260 mm (167.72 in.) |
| Width | 1695 mm (66.73 in.) |
| Height | 1695 mm (66.73 in.) |
| Wheelbase | 2750 mm (108.27 in.) |
| Front track | 1480 mm (58.27 in.) |
| Rear (Back) track | 1480 mm (58.27 in.) |
| Ride height (ground clearance) | 145 mm (5.71 in.) |
| Minimum turning circle (turning diameter) | 10.4 m (34.12 ft.) |
| Drivetrain, Brakes & Suspension | |
| Drivetrain Architecture | Front wheel drive. FHEV. ICE and electric motor drive front wheels. |
| Drive wheel | Front wheel drive |
| Number of gears and type of gearbox | automatic transmission e-CVT |
| Front suspension | Independent type McPherson |
| Rear suspension | Torsion |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 185/60 R15; 195/50 R16 |
| Wheel rims size | 5.5J x 15; 6J x 16 |




