2021 Hyundai Sonata N Line. Credit: Hyundai.
The wait is almost over for the Sonata N Line -- the 290-horsepower high performance version of Hyundaiís mid-size sedan. Riding on 19-inch wheels and with dark chrome trim, it arrives in most dealerships this month priced at $33,200.
Based on the SEL Plus trim, the 2021 Sonata N Line adds N Brand design elements, chassis upgrades, and an exclusive Smartstream 2.5-liter turbocharged engine mated to a new N Eight-Speed Wet Dual-Clutch Transmission (N DCT). Based on the 2020 Sonata's new 2.5-liter four-cylinder engine, the N Line version adds a turbocharger, a different cylinder head, and unique internals. These changes put the horsepower at 290 at 5,800 rpm and the torque at 311 lb.-ft. at 1,650-4,000 rpm. These numbers are a significant increase over the standard Sonata's 191-horsepower 2.5-liter four-cylinder engine or its optional 180-horsepower turbocharged 1.6-liter four-cylinder engine.
Smartstream 2.5L Turbo GDI+MPI and N Wet DCT Technical Highlights
- All-new design and engine structure
- High tumble combustion system
- High volumetric efficiency
- Exhaust manifold integrated cylinder head
- Piston cooling gallery
- Split cooling and cross flow cooling system
- Enhanced fuel efficiency
- GDI and MPI dual injection system
- Integrated thermal management system
- Cooled exhaust gas recirculation
- Dynamic response
- eCVVT driven by DC motor
- High-response variable induction system
- N Eight-Speed Wet Dual-Clutch Transmission
- Optimized eight-speed layout
- Electric oil pump and accumulator
N Eight-Speed Wet Dual-Clutch Transmission
Hyundai developed the new N DCT with manual or fully automatic modes and eight speeds for improved acceleration and efficiency. Electronic actuators operate the dual clutch, which Hyundai says provides ride comfort, fuel efficiency, and makes it fun to drive. Unlike a dry dual-clutch transmission, the wet N DCT uses oil to significantly improve lubrication and cooling performance, as required of higher-torque applications. The wet-type dual-clutch transmission uses an electric oil pump for increased thermal endurance and reduced direct parasitic drag on the powertrain. The N DCT was fully developed in-house by N brand engineers. This transmission is similar to the one found in the high-performance 2021 Veloster N
N Power Shift
N Power Shift (NPS) engages when the car accelerates with more than 90 percent throttle demand, mitigating torque reduction by using upshifts to deliver maximum power to the wheels through each gear change. This gives the driver a responsive feeling of dynamic acceleration when shifting.
Driving Experience Customization
Along with other updated features, such as Rev Matching and Launch Control, Sonata N Line is optimized to automatically sense driving styles and road conditions to optimize shift points. For example, the car will hold lower gears longer during performance driving for better acceleration out of corners. Conversely, if the driver is aggressively pushing the car on a twisty road, the car will use the full range of available engine RPM to maximize performance. All of these features can be configured in Sonata N Line's improved infotainment system, using the latest operating system shown on a high-definition 10.25-inch display.
The following SmartSense safety features are standard on the Sonata N Line:
- Forward Collision-Avoidance Assist (FCA) with Pedestrian Detection
- Smart Cruise Control with Stop & Go
- High Beam Assist
- Lane Keeping Assist
- Lane Follow Assist
- Driver Attention Warning
- Rear Occupant Warning (ROA) door logic
- Blind-Spot Collision-Avoidance Assist with Rear Cross-Traffic Collision-Avoidance Assist
- Safety Exit Warning