The Kia Carnival IV, specifically the facelifted 2023 model equipped with the 3.5 GDI Smartstream V6 engine and an 8-speed automatic transmission with seating for nine, represents Kia’s flagship offering in the minivan segment. Introduced in November 2023, this variant builds upon the fourth-generation Carnival (launched in 2020) with styling updates and continued refinement of its powertrain. Positioned as a premium trim within the Carnival lineup, it caters to families prioritizing space, comfort, and a more powerful driving experience. The Carnival, known as the Kia Sedona in some markets prior to 2021, has become a significant player in the North American minivan market, challenging established competitors like the Honda Odyssey and Toyota Sienna.
Technical Specifications
| Brand | Kia |
| Model | Carnival |
| Generation | Carnival IV (facelift 2023) |
| Type | 3.5 GDI Smartstream V6 (294 Hp) Automatic 9 Seats |
| Start of production | November, 2023 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Minivan |
| Seats | 9 |
| Doors | 5 |
| Fuel consumption (urban) | 12.8-13 l/100 km (18.4 – 18.1 US mpg, 22.1 – 21.7 UK mpg, 7.8 – 7.7 km/l) |
| Fuel consumption (extra urban) | 9.2 l/100 km (25.6 US mpg, 30.7 UK mpg, 10.9 km/l) |
| Fuel consumption (combined) | 11.1-11.2 l/100 km (21.2 – 21 US mpg, 25.4 – 25.2 UK mpg, 9 – 8.9 km/l) |
| CO2 emissions | 189-192 g/km |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 7.1 kg/Hp, 141.3 Hp/tonne |
| Weight-to-torque ratio | 5.9 kg/Nm, 170.7 Nm/tonne |
| Power | 294 Hp @ 6400 rpm |
| Power per litre | 84.7 Hp/l |
| Torque | 355 Nm @ 5000 rpm (261.83 lb.-ft. @ 5000 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | Smartstream / G6DT |
| Engine displacement | 3470 cm3 (211.75 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 92 mm (3.62 in.) |
| Piston Stroke | 87 mm (3.43 in.) |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection and Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Kerb Weight | 2080-2090 kg (4585.62 – 4607.66 lbs.) |
| Fuel tank capacity | 72 l (19.02 US gal | 15.84 UK gal) |
| Length | 5155 mm (202.95 in.) |
| Width | 1995 mm (78.54 in.) |
| Width including mirrors | 2266 mm (89.21 in.) |
| Height | 1775 mm (69.88 in.) |
| Wheelbase | 3090 mm (121.65 in.) |
| Front track | 1741-1746 mm (68.54 – 68.74 in.) |
| Rear track | 1741-1746 mm (68.54 – 68.74 in.) |
| Front overhang | 935 mm (36.81 in.) |
| Rear overhang | 1130 mm (44.49 in.) |
| Ride height (ground clearance) | 173 mm (6.81 in.) |
| Approach angle | 15.4° |
| Departure angle | 20° |
| Drivetrain Architecture | ICE drives front wheels |
| Drive wheel | Front wheel drive |
| Number of gears | 8 |
| Gearbox type | Automatic transmission |
| Front suspension | Independent type McPherson |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs, 325 mm |
| Rear brakes | Disc, 325 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 235/60 R18; 235/55 R19 |
| Wheel rims size | 7J x 18; 7.5J x 19 |
Powertrain & Engine Architecture
At the heart of this Carnival variant lies the 3.5-liter Smartstream V6 engine, designated as the G6DT. This engine utilizes a combination of direct injection and multi-port fuel injection to optimize combustion efficiency and power delivery. The Smartstream engine family is known for its focus on reducing friction and improving thermal efficiency. The engine employs a Dual Continuously Variable Valve Timing (D-CVVT) system, controlling both intake and exhaust valve timing for enhanced performance across the rev range. The 8-speed automatic transmission, developed in-house by Hyundai/Kia, is designed to provide smooth and responsive shifts. It features a wide gear ratio spread, optimizing both acceleration and fuel economy. The transmission is electronically controlled, adapting shift patterns based on driving conditions and driver input.
Driving Characteristics
The 294 horsepower and 261 lb-ft of torque produced by the 3.5 GDI V6 provide ample power for a vehicle of the Carnival’s size and weight. Acceleration is brisk, particularly from a standstill, making highway merging and overtaking maneuvers effortless. The 8-speed automatic transmission contributes to a refined driving experience, with smooth gear changes and minimal hesitation. Compared to lower-powered Carnival variants (like those with the 2.2L diesel engine available in some markets), this V6 offers a noticeably more responsive and engaging driving experience. While not a sports car, the Carnival V6 provides a confident and composed ride, even when fully loaded with passengers and cargo. The transmission’s gear ratios are tuned for everyday usability, prioritizing smooth cruising over outright performance.
Equipment & Trim Levels
The 2023 Kia Carnival IV 3.5 GDI Smartstream V6 Automatic 9-Seat typically comes standard with a comprehensive suite of features. These include leather upholstery, heated and ventilated front seats, a large touchscreen infotainment system with navigation, a premium sound system, a panoramic sunroof, and a suite of advanced driver-assistance systems (ADAS) such as adaptive cruise control, lane-keeping assist, and blind-spot monitoring. Optional extras often include rear-seat entertainment systems, premium interior trim packages, and upgraded wheel designs. The nine-seat configuration features second-row captain’s chairs and a three-person bench in the third row, offering flexible seating arrangements.
Chassis & Braking
The Carnival IV utilizes a front-wheel-drive platform with an independent McPherson strut suspension in the front and an independent multi-link suspension in the rear. This suspension setup is tuned to provide a comfortable and controlled ride. The vehicle is equipped with ventilated disc brakes on all four wheels, providing ample stopping power. Anti-lock Braking System (ABS) is standard, along with Electronic Stability Control (ESC) and Traction Control System (TCS). Steering is rack-and-pinion with electric power assist, offering a light and precise feel.
Market Reception & Comparison
The 2023 Kia Carnival V6 has been well-received by automotive critics and consumers alike. Reviewers have praised its spacious interior, comfortable ride, and powerful engine. Fuel economy, while not exceptional for a vehicle of its size, is competitive within the minivan segment. Compared to the Toyota Sienna, which is only available as a hybrid, the Carnival V6 offers a more traditional gasoline engine option. The Sienna boasts superior fuel economy, while the Carnival provides a more conventional driving experience. Against the Honda Odyssey, the Carnival offers a more modern and stylish design, along with a more comprehensive suite of standard features.
Legacy
The Smartstream V6 engine and 8-speed automatic transmission represent a significant step forward in Kia’s powertrain technology. While long-term reliability data is still emerging for this specific combination, Kia has a growing reputation for building durable and dependable vehicles. The Carnival IV, and particularly the V6 variant, is expected to hold its value well in the used car market due to its spaciousness, features, and relatively strong performance. The engine’s direct injection system may require periodic maintenance to prevent carbon buildup, but overall, the powertrain is anticipated to be a reliable and long-lasting unit.
