The Kia Carnival IV 3.5i Smartstream V6 Automatic 9-Seat, produced from June 2020 through 2024, represents the top-tier engine option for the fourth generation of Kia’s flagship minivan. Positioned as the premium offering within the Carnival IV lineup, this variant aimed to provide a blend of spaciousness, comfort, and robust performance for families and those requiring substantial passenger capacity. It was primarily marketed in markets where minivans remain popular, such as North America, parts of Asia, and select regions in South America. The Carnival IV, internally designated as the KA4, moved away from the Sedona nameplate in many markets, adopting the globally recognized Carnival moniker. This generation marked a significant step forward in design and technology for Kia’s minivan offering.
Technical Specifications
| Brand | Kia |
| Model | Carnival |
| Generation | Carnival IV |
| Type | 3.5i Smartstream V6 (294 Hp) Automatic 9 Seat |
| Start of production | June, 2020 |
| End of production | 2024 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Minivan |
| Seats | 9 |
| Doors | 5 |
| Fuel consumption (urban) | 12.5 l/100 km (18.8 US mpg) |
| Fuel consumption (extra urban) | 9.1-9.2 l/100 km (25.8 – 25.6 US mpg) |
| Fuel consumption (combined) | 11 l/100 km (21.4 US mpg) |
| CO2 emissions | 187-188 g/km |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 6.8 kg/Hp |
| Weight-to-torque ratio | 5.6 kg/Nm |
| Power | 294 Hp @ 6400 rpm |
| Torque | 355 Nm @ 5200 rpm (261.83 lb.-ft. @ 5200 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | G6DT |
| Engine displacement | 3470 cm3 (211.75 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Fuel injection system | Direct injection |
| Engine oil capacity | 6.1 l (6.45 US qt | 5.37 UK qt) |
| Coolant capacity | 8.6 l (9.09 US qt | 7.57 UK qt) |
| Kerb Weight | 2000 kg (4409.25 lbs.) |
| Length | 5155 mm (202.95 in.) |
| Width | 1995 mm (78.54 in.) |
| Height | 1740 mm (68.5 in.) |
| Wheelbase | 3090 mm (121.65 in.) |
| Drivetrain Architecture | Front wheel drive |
| Number of gears | 8 |
| Gearbox type | Automatic transmission |
Powertrain & Engine Architecture
The heart of the Carnival IV 3.5i is the G6DT Smartstream V6 engine. This 3.47-liter (211.75 cubic inches) naturally aspirated engine utilizes direct fuel injection, a key component of the Smartstream technology. The engine’s design prioritizes efficiency and reduced emissions while delivering substantial power. The G6DT features a dual variable valve timing (DVVT) system, optimizing valve timing for improved performance across the rev range. The 8-speed automatic transmission, sourced from Hyundai/Kia’s in-house development, is specifically tuned to complement the V6’s power delivery. This transmission offers smooth shifts and contributes to the overall refinement of the driving experience. Unlike some competitors who have moved towards turbocharged engines, Kia opted for a naturally aspirated V6, prioritizing a linear power curve and a more traditional engine sound.
Driving Characteristics
The 294 horsepower and 261.83 lb-ft of torque produced by the 3.5i Smartstream V6 provide ample power for a vehicle of the Carnival’s size and weight. Acceleration is brisk, particularly when unladen, and the minivan handles highway merging and overtaking maneuvers with ease. The 8-speed automatic transmission is well-programmed, offering smooth and timely shifts. While not a sports-oriented vehicle, the Carnival IV 3.5i delivers a confident and composed driving experience. Compared to lower-trim models equipped with the 2.2-liter diesel engine (available in some markets), the V6 offers a more refined and responsive driving experience, albeit with slightly higher fuel consumption. The weight distribution, being front-wheel drive, is noticeable during spirited cornering, but the suspension effectively mitigates body roll.
Equipment & Trim Levels
The 3.5i Smartstream V6 Automatic 9-Seat trim typically represents the highest level of equipment available for the Carnival IV. Standard features generally include leather upholstery, heated and ventilated front seats, a premium audio system, a large touchscreen infotainment system with navigation, a panoramic sunroof, and a comprehensive suite of advanced driver-assistance systems (ADAS). These ADAS features often include adaptive cruise control, lane-keeping assist, forward collision avoidance assist, and blind-spot monitoring. Optional extras could include premium paint colors, upgraded wheel designs, and rear-seat entertainment systems. The interior design emphasizes spaciousness and comfort, with ample legroom in all three rows of seating.
Chassis & Braking
The Carnival IV utilizes a McPherson strut front suspension and a multi-link rear suspension, providing a comfortable and controlled ride. The suspension is tuned to prioritize ride quality, absorbing bumps and imperfections in the road surface effectively. Braking duties are handled by ventilated discs at the front and solid discs at the rear. Anti-lock braking system (ABS) is standard, along with electronic stability control (ESC). The steering is a rack and pinion system, providing precise and responsive steering feel. Tire sizes typically range from 235/60 R18 to 235/55 R19, depending on the specific trim level and market.
Market Reception & Comparison
The Kia Carnival IV 3.5i Smartstream V6 Automatic 9-Seat generally received positive reviews from automotive critics. Praise was directed towards its spacious interior, comfortable ride, and powerful engine. However, some reviewers noted that the fuel economy, while acceptable for a vehicle of its size, was not class-leading. Compared to competitors like the Chrysler Pacifica and Honda Odyssey, the Carnival IV offered a more distinctive styling and a more comprehensive warranty. The V6 engine was often seen as a more desirable option than the diesel engine, particularly in markets where gasoline fuel is readily available and affordable. Reliability reports have been generally positive, with few widespread issues reported for the G6DT engine and 8-speed automatic transmission.
Legacy
The Kia Carnival IV 3.5i Smartstream V6 Automatic 9-Seat represents a significant achievement for Kia in the minivan segment. Its combination of spaciousness, comfort, and performance has made it a popular choice for families and those requiring a versatile and practical vehicle. The G6DT engine, while not the most fuel-efficient option, has proven to be a reliable and durable powertrain. On the used car market, well-maintained examples of the Carnival IV 3.5i command a premium price due to their desirable features and proven reliability. The Carnival IV established Kia as a serious contender in the minivan market, paving the way for future iterations of the model.
