When the eighth-generation VW Golf arrived, loyalists questioned whether the icon had lost some of its edge. After a impressive 2024 refresh, it now faces the all-new Kia K4, while the established Mazda3 remains in contention. Each takes a distinct approach to the compact hatchback formula, but only one can claim the top spot. Volkswagen’s broad range also matters: its Austrian technical catalogue lists petrol and electrified versions, from an 85 kW/115 PS Golf 4Me TSI to high-performance derivatives. The 1.5 eTSI assessed here represents just one part of that lineup.
Interior and Comfort
The Mazda3, now in its fourth generation since 2019, has the most mature design in this group. Its cabin features circular digital gauges, leather-trimmed surfaces and a tactile rotary controller, giving it an almost retro feel beside its rivals. Ergonomics are generally solid, though some quirks remain. The front seats, but, lack lateral support and seem best suited to slimmer, shorter occupants. Rear access is tight, and knee room is limited. The stylish rear design comes at a cost to practicality.
Kia’s K4, launched in 2024 as the Ceed’s successor, makes a bold statement with its styling and interior layout. The driving position is notably high, and the seats are firm. Rear legroom is generous, but foot space under the front seats is restricted. A dedicated screen handles the climate controls, though the steering wheel can partly obscure it while driving. Some controls, such as the heated steering wheel button on the door, take time to learn. The basic menu is cluttered with rarely used features. Its longer 2,720 mm wheelbase helps explain the roomier rear accommodation: the hatchback is 4,440 mm long, compared with the Golf’s 4,286 mm.
The Golf, meanwhile, has addressed many usability complaints from earlier in its eighth generation. Physical buttons have returned to the steering wheel, replacing the much-criticized touch controls. Infotainment menus are now more logically organized and responsive. The standout feature remains the ergoActive seats, which offer the best comfort and adjustability in this group. Rear passengers have ample space, with only a slightly upright seatback as a minor drawback.
Cargo and Practicality
Though it is the shortest car here, the VW Golf has the largest maximum boot capacity: 1,237 liters with the rear seats folded and 381 liters in standard configuration. Volkswagen lists the hatchback at 4,286 mm long, 1,789 mm wide and 1,454 mm high. The Kia K4 is close behind, offering 438 liters, or up to 1,217 liters, rivaling some estate cars. At 1,850 mm wide and 1,435 mm high, it is also the larger-bodied hatchback. The comparison comes down to a practical trade-off: the K4 has 57 liters more boot space with the seats up, while the Golf provides 20 liters more with them folded. Kia’s separate Sportswagon is a different body style, measuring 4,695 mm and offering 604 to 1,439 liters of luggage capacity. The Mazda3 trails, with a boot ranging from 351 to 1,026 liters, and lacks practical touches such as cargo tie-downs. Its rear space feels more like a supermini’s than that of a true compact hatchback.
Engines and Efficiency
Each car takes a different path under the bonnet. The Kia K4’s 1.6 T-GDI turbo engine delivers a lively character but can be abrupt when pulling away, especially in wet conditions, when traction becomes an issue. It is also the thirstiest, averaging 6.8 liters per 100 km in mixed driving and rising to 8.5 liters on the motorway. With a 47-liter tank, its high-speed range is limited to around 553 km. The K4’s ride is firm yet comfortable, and it comes packed with driver assistance tech, though refinement still trails the Golf.
European launch coverage has also described a separate K4 hybrid, distinct from the 1.6 T-GDI tested here. The system produces 113 kW/154 PS and is paired with a six-speed dual-clutch transmission. Kia’s stated combined consumption for that hybrid is 5.2 liters per 100 km under WLTP, and its reported starting price was €33,600. Those figures describe a different powertrain and should not be confused with the test car’s measured fuel consumption.
The Mazda3 uses a naturally aspirated 2.5-liter engine, with smooth, linear power delivery. Its long gearing makes acceleration feel less urgent than the numbers suggest, but at 140 km/h the engine turns at just 3,000 rpm. It averages 6.2 liters per 100 km in the test, showing that larger displacement does not always mean higher fuel consumption. Like the Golf, it features cylinder deactivation under light loads. Mazda continues to forgo a gasoline particulate filter.
The Golf’s 1.5 eTSI mild-hybrid system is the most efficient of the group, returning 5.8 liters per 100 km in real-world testing. The DSG gearbox shifts smoothly, while a rigid chassis and optional adaptive dampers help the car feel agile and composed. The micro-hybrid setup delivers brisk response, though it sounds strained at high revs. With a tight 10.8-meter turning circle, the Golf is also the easiest to maneuver in city traffic.
On the Road
Driving dynamics set the Golf apart. Its steering is precise and progressive, making the car feel smaller and more nimble than its dimensions suggest. Road and wind noise are well suppressed. The suspension, especially with adaptive dampers, offers a broad range of comfort and control. The Mazda3 delivers more understated sportiness, with direct steering and a firmer ride suited to winding roads. The Kia K4 feels stable and comfortable, but its handling and refinement don’t quite match the Golf’s polish.
All three cars use mild-hybrid technology and perform similarly in braking tests, stopping from 100 km/h in 34 to 35 meters. None leaves a poor impression on that measure.
Verdict and Context
In third place, the Mazda3 Skyactiv-G 140 will appeal to buyers seeking individuality and a touch of quirkiness, but limited space and an aging interior hold it back (AUTO BILD score: 8). The Kia K4 1.6 T-GDI takes second place, with plenty of tech and room, but high fuel consumption and a lack of standout features count against it (score: 8.1). The VW Golf 1.5 eTSI reclaims its crown with a balanced, refined package and few real weaknesses (score: 8.7).
For readers interested in how Mazda is navigating the future of combustion engines, the upcoming fifth-generation MX-5 may mark a turning point for the brand’s iconic roadster. More details are available in this analysis of Mazda’s plans for the last gasoline-powered Miata.
The latest Golf update has restored much of the model’s appeal, improving efficiency and comfort. The Kia K4 impresses with space and technology, while the Mazda3 remains a stylish outlier. For buyers in Spain and across Europe, personal priorities may tip the balance, but the Golf’s all-round strengths keep it at the top of the compact class for now.
