
2021 Corolla has both three-cylinder and four-cylinder engines. The 1.5L naturally aspirated engine is a three-cylinder, while the 1.2L turbocharged engine and 1.8L hybrid naturally aspirated engine are four-cylinder, paired with a CVT transmission and a six-speed manual transmission respectively. 2021 Corolla Body Frame: The body frame uses hot-formed steel, with the longitudinal beams in the engine compartment made of 980 MPa high-strength steel and designed for energy absorption. Additionally, the A-pillar strength reaches 1500 MPa, extending to the entire door ring. Thus, the TNGA architecture ensures high reliability in the Corolla's body structure safety. The 2021 Corolla series comes standard with 8 airbags and features Toyota's latest Toyota Safety Sense intelligent mobility safety system. 2021 Corolla Powertrain: The 2021 Corolla offers manual transmission, CVT, and E-CVT for the hybrid system. The 1.2T, 1.5L, and 1.8L engines deliver maximum power outputs of 85kW, 89kW, and 72kW respectively.

As a long-term owner of the 2021 Corolla, I drive this generation of the car, which is equipped with a four-cylinder engine. Whether it's the gasoline-powered 1.2T turbocharged version or the hybrid 1.8L, both have this configuration. The engine runs incredibly smoothly, unlike some three-cylinder cars that exhibit noticeable vibrations, and it remains particularly quiet in urban traffic. In terms of fuel consumption, the hybrid version averages just 4.5L/100km in my usage, which is quite economical. The Corolla has consistently used four-cylinder engines for many years, ensuring reliability and driving comfort. I've never experienced engine issues during long trips. Maintenance-wise, parts are easy to find and costs are reasonable, making it a wise choice overall, ideal for family daily use. The engine is the heart of the car, and opting for a four-cylinder can minimize minor issues.

I'm very familiar with car engine modifications and have taken apart many hoods for research. The 2021 Corolla typically features a four-cylinder design. The gasoline version, like the 1.2L inline-four, delivers smooth power output, while the hybrid version uses an Atkinson-cycle four-cylinder that prioritizes efficiency. The number of cylinders directly affects engine balance - four-cylinder engines eliminate the vibration often felt in three-cylinder models, resulting in much smoother driving. Fuel consumption is well controlled, and I frequently perform DIY maintenance where oil changes are straightforward. The Corolla's engine has excellent sound insulation, remaining quiet at high speeds with high reliability and low failure rates, making it ideal for beginners learning to drive. You can verify the cylinder count by checking the engine identification plate during inspections. Overall, it's a practical and worry-free car - don't overlook how cylinder count affects acceleration when considering engine specifications.

I have a basic understanding of car knowledge. The mainstream engines of the 2021 Corolla are all four-cylinder, such as the 1.2T gasoline engine and the 1.8L hybrid engine. The number of cylinders refers to the number of pistons, and the four-cylinder structure offers good balance, ensuring smooth and quiet operation. The fuel consumption does not exceed 7L/100km, making it highly practical. The Corolla's engine is reliable and easy to maintain, unlike older cars that often require frequent repairs. Overall, it's a great car, and choosing a four-cylinder ensures a worry-free ride.


