Suzuki is gearing up for a significant change in its popular Swift hatchback, with the introduction of the all-new Z-Series engine, codenamed Z12, expected in 2024. This new engine, which will have three cylinders, is set to replace the current K12 engine series, known for its four-cylinder configuration. Like its predecessor, the Z12 engine will have a 1.2-litre capacity.

Suzuki engines have a reputation for their refinement and fuel efficiency, and the Z12 engine is likely to continue this trend while possibly improving on current efficiency figures. While detailed specifications have not yet been revealed, a report from Autocar India (ACI) suggests that despite the reduced cylinder count, the Z12 engine will deliver power figures similar to the K12 unit. Currently, Suzuki's K12 engine serves a range of cars including the Baleno, Swift, Ignis, and Fronx.

One notable advantage of losing a cylinder in the engine configuration is a reduction in weight. This change aligns with Suzuki's ongoing commitment to technological advancements, as evidenced by the latest Swift displayed at the Tokyo Motor Show, which incorporates hybrid technology. However, it's worth mentioning that the Swift intended for the Indian market will not feature hybrid tech.

This update holds particular significance for two key reasons. Firstly, Maruti Suzuki is the largest car manufacturer in India. Secondly, the automaker has remained steadfast in using four-cylinder engines, while many other manufacturers have transitioned to three-cylinder units for their entry-level cars. Brands like Tata Motors, Volkswagen, Mahindra, and Renault offer three-cylinder engines in their vehicles. Hyundai, in addition to Maruti Suzuki, continues to provide its Kappa 1.2-litre engine, which features four cylinders. While Maruti Suzuki's entry-level models, such as the Celerio and Alto K10, use 1.0-liter three-cylinder engines, the four-cylinder 1.2-liter K12 series engines remain a cornerstone for the company.

The distinction between three-cylinder and four-cylinder engines becomes evident in terms of fuel efficiency, power output, and weight. Three-cylinder engines, being smaller and lighter with fewer moving parts, typically excel in fuel efficiency compared to their four-cylinder counterparts. However, they tend to generate less power and torque, potentially resulting in a feeling of reduced performance.

On the other hand, four-cylinder engines are celebrated for their versatility and refinement. With a balanced firing order, they offer a smoother and quieter driving experience and are better suited for larger, performance-oriented vehicles. However, they are heavier and typically consume more fuel than their three-cylinder counterparts.

Given the increasingly stringent emission norms worldwide, the automotive industry is shifting towards three-cylinder engines. For example, Volkswagen provides two engine options for its midsize SUV Taigun and Sedan Virtus, featuring a three-cylinder 1.0-litre TSI unit in entry-level variants and a four-cylinder 1.5-litre TSI unit for the GT variants, offering more power and refinement.