2016-2018 Toyota Corolla iM 1.8 VVT-i (137 Hp)

The Toyota Corolla iM 1.8 VVT-i, produced from 2016 to 2018, represented a significant shift in Toyota’s compact offerings in the United States. Replacing the Scion iM after Toyota dissolved the Scion brand, the Corolla iM was positioned as a sporty, practical, and affordable hatchback aimed at a younger demographic. It was built on the Toyota New Global Architecture (TNGA) platform, specifically the MC platform, which also underpinned other compact Toyota models. This variant, equipped with the 1.8-liter 2ZR-FAE engine producing 137 horsepower, served as the primary powertrain option for the North American market during its brief production run.

Powertrain & Engine Architecture

The heart of the Corolla iM 1.8 VVT-i is the 2ZR-FAE 1.8-liter inline-four cylinder gasoline engine. This engine is a naturally aspirated powerplant featuring Toyota’s Variable Valve Timing with intelligence (VVT-i) system. VVT-i adjusts the timing of both the intake and exhaust valves, optimizing engine performance and fuel efficiency across a wider range of engine speeds. The engine utilizes a dual overhead camshaft (DOHC) design with four valves per cylinder, contributing to its relatively high power output for its displacement. Fuel delivery is managed by electronic fuel injection. The 2ZR-FAE engine is known for its reliability and relatively simple design, making it a cost-effective option for Toyota.

While a six-speed manual transmission was available, the majority of Corolla iMs sold in the US were equipped with a continuously variable transmission (CVT). This CVT, designated as K110, was chosen for its fuel efficiency and smooth operation. Unlike traditional automatic transmissions with fixed gear ratios, the CVT provides a virtually infinite number of gear ratios within its operating range, allowing the engine to operate at its most efficient point. The CVT features a simulated shift mode, offering drivers a more conventional driving experience if desired. The transmission is front-wheel drive only.

Engine Specifications

The 2ZR-FAE engine produces 137 horsepower at 6,100 rpm and 171 Nm (126.12 lb-ft) of torque at 4,000 rpm. This output provides adequate performance for daily commuting and light-duty driving. The engine’s power-to-weight ratio is approximately 9.7 kg/hp, and its torque-to-weight ratio is 7.8 kg/Nm. The engine has a displacement of 1798 cm³ (109.72 cubic inches) and a compression ratio of 10.0:1. Recommended oil capacity is 4.2 liters (4.44 US quarts), and the cooling system requires 5.6 liters (5.92 US quarts) of coolant.

Driving Characteristics

The Corolla iM 1.8 VVT-i with the CVT offers a comfortable and predictable driving experience. Acceleration is adequate for merging onto highways and navigating city streets, but it’s not particularly sporty. The CVT effectively maximizes fuel efficiency, but some drivers may find the engine’s tendency to hold at higher RPMs during acceleration to be somewhat intrusive. The simulated shift mode helps mitigate this by providing more defined “gear” changes. Compared to a manual transmission equipped iM, the CVT version sacrifices some driver engagement for improved ease of use and fuel economy. The iM’s suspension is tuned for comfort, providing a relatively smooth ride over most road surfaces. Steering is light and precise, making it easy to maneuver in tight spaces.

Equipment & Trim Levels

The Corolla iM 1.8 VVT-i was offered with a relatively generous level of standard equipment. All models included features such as a 7-inch touchscreen infotainment system with Toyota Safety Sense-P, which incorporates pre-collision system with pedestrian detection, lane departure alert with steering assist, and automatic high beams. Standard interior features included cloth upholstery, a rearview camera, Bluetooth connectivity, and a six-speaker audio system. Available options included a moonroof, upgraded audio system, and all-weather floor mats and cargo mats. The interior design was modern and functional, with a focus on usability. The iM’s trim level was essentially a single, well-equipped package, with options being added individually rather than through distinct trim levels.

Chassis & Braking

The Corolla iM utilizes a McPherson strut front suspension with a coil spring and anti-roll bar, providing a balance of ride comfort and handling. The rear suspension employs a double wishbone setup, further contributing to the car’s stable and controlled ride. Braking duties are handled by ventilated discs at the front and solid discs at the rear. The iM is equipped with an anti-lock braking system (ABS) as standard, enhancing safety during emergency braking situations. Electric power steering provides light and responsive steering feel. The vehicle rides on 225/45 R17 tires mounted on 17-inch alloy wheels.

Market Reception & Comparison

The Corolla iM was generally well-received by automotive critics, who praised its value, practicality, and standard safety features. However, some reviewers noted that its engine lacked the punch of some competitors, and the CVT could feel somewhat unrefined. Compared to other hatchbacks in its class, such as the Honda Civic Hatchback and Mazda3, the Corolla iM offered a more affordable price point and a more comprehensive suite of standard safety features. Fuel economy was competitive, with EPA estimates of 27 mpg city, 35 mpg highway, and 30 mpg combined. Reliability was expected to be excellent, consistent with Toyota’s reputation. The iM’s primary target audience was young buyers seeking a stylish, practical, and affordable hatchback.

Technical Specifications

Legacy

The Corolla iM, though only produced for a short period, has established a reputation as a reliable and affordable used car. The 2ZR-FAE engine is known for its durability, and the CVT transmission, while not universally loved, has proven to be relatively trouble-free. The iM’s comprehensive standard safety features and practical hatchback body style continue to appeal to buyers seeking a value-oriented compact car. As of 2024, well-maintained Corolla iMs can be found on the used car market at attractive prices, making them a compelling option for budget-conscious buyers. The iM paved the way for the current generation Corolla Hatchback, which continues to build on its predecessor’s strengths.