What is the difference between 1.2L and 1.5L engine displacement in cars?

[LolaFitz]

The difference between 1.2L and 1.5L engine displacement in cars lies in their power output: the 1.2L engine has a maximum power of 63kW and a maximum torque of 108Nm, while the 1.5L engine has a maximum power of 82kW and a maximum torque of 146Nm. Engine displacement refers to the volume of fluid intake or exhaust per stroke or cycle, serving as a crucial parameter for measuring a car's performance. It is usually marked on the vehicle body or rear. Generally, a larger displacement means the engine releases more energy per unit time. In China, passenger car classifications are based on engine displacement: mini cars have displacements below 1.0L, compact cars range between 1.0L and 1.6L, mid-size cars between 1.6L and 2.5L, and executive cars between 2.5L and 4.0L.

[LeonardoRose]

I've driven cars for several years, ranging from 1.2L to 1.5L engines, and the biggest difference I've noticed is in daily usage. The 1.2L engine is smaller, making it super fuel-efficient for city commuting, typically consuming around 6 liters per 100 kilometers. It's economical for commuting but feels sluggish during acceleration, especially when carrying passengers uphill. You need to press the accelerator deeper when starting from a stop, and overtaking at traffic lights can be a bit nerve-wracking. The 1.5L engine has much more power, with quicker acceleration response, and feels more stable when climbing hills or changing lanes on highways. However, it consumes more fuel, possibly up to 8 liters in city driving. When choosing a car, if it's mainly for short commutes, the 1.2L is cost-effective and hassle-free. But if you frequently drive on highways or take family trips, the 1.5L is safer and more reliable. Additionally, smaller engines are cheaper to maintain, but the 1.5L tends to be more durable in the long run, with a longer engine lifespan.

[DelLena]

As a driving enthusiast, I'm particularly sensitive to power differences. The 1.2L engine feels somewhat sluggish at low speeds, with slow acceleration from standstill – like having to floor the throttle at traffic lights just to keep up. Cornering feels less nimble too. Switching to a 1.5L makes a world of difference – ample torque delivers quicker acceleration response for effortless overtaking, plus more stable high-speed cruising with a fuller, more muscular engine note. While the 1.2L might edge out in urban fuel efficiency, it actually consumes more when running AC or climbing hills as the engine strains. The 1.5L's slightly higher fuel consumption is offset by balanced performance, proving more capable on mountain roads or when carrying loads. Long-term, the 1.5L's superior cooling and reduced vibration translate to greater driving comfort. Though maintenance costs are marginally higher, the vastly superior driving pleasure justifies it. For those pursuing driving passion, the 1.5L is the unequivocal choice.

[DeMary]

I'm more pragmatic, there's a significant cost difference between 1.2L and 1.5L engines when buying a car. The smaller 1.2L engine is about 20,000 yuan cheaper, with lower insurance and annual vehicle taxes saving thousands each year. Maintenance costs are also slightly cheaper as it requires less oil and smaller parts. In terms of fuel consumption, the 1.2L is more economical in city driving but consumes more on highways with AC on as the engine works harder. The 1.5L is more expensive but holds its value better, with smaller price gaps when selling used after a few years. For daily driving, the 1.2L is sufficient unless you frequently drive on rural roads, so upgrading isn't necessary. Additionally, the 1.2L has lower emissions, is more environmentally friendly, and qualifies for government subsidies, making it a cost-effective choice at purchase. Overall, the 1.2L saves on fuel, but the total cost difference isn't huge—it depends on your personal budget.