2021 Subaru WRX (VB) II 2.4 (271 Hp) AWD SPT

The Subaru WRX (VB) II 2.4 AWD SPT, introduced in September 2021, represents the second generation of the VB series WRX, a performance-oriented compact sedan. This variant, equipped with the FA24F 2.4-liter turbocharged boxer engine and Subaru’s SPT (Sport Performance Transmission) 8-speed automatic, occupies a significant position in the WRX lineup, offering a blend of accessible power and convenience. It builds upon the legacy of the WRX, a model renowned for its rally-bred DNA and all-wheel-drive capability, now adapted for the modern driving experience. The VB generation marked a substantial redesign for the WRX, moving to the Subaru Global Platform (SGP) for improved rigidity and handling.

Technical Specifications

Brand Subaru
Model WRX
Generation WRX (VB) II
Type (Engine) 2.4 (271 Hp) AWD SPT
Start of production September, 2021
Powertrain Architecture Internal Combustion engine
Body type Sedan
Seats 5
Doors 4
Fuel consumption (urban) 12.4 l/100 km (19 US mpg, 22.8 UK mpg, 8.1 km/l)
Fuel consumption (extra urban) 9.4 l/100 km (25 US mpg, 30.1 UK mpg, 10.6 km/l)
Fuel consumption (combined) 11.2 l/100 km (21 US mpg, 25.2 UK mpg, 8.9 km/l)
Fuel Type Petrol (Gasoline)
Weight-to-power ratio 5.7 kg/Hp, 174.2 Hp/tonne
Weight-to-torque ratio 4.4 kg/Nm, 224.9 Nm/tonne
Power 271 Hp @ 5600 rpm
Power per litre 113.5 Hp/l
Torque 350 Nm @ 2000-5200 rpm (258.15 lb.-ft. @ 2000-5200 rpm)
Engine layout Front, Longitudinal
Engine Model/Code FA24F
Engine displacement 2387 cm3 (145.66 cu. in.)
Number of cylinders 4
Engine configuration Boxer
Cylinder Bore 94 mm (3.7 in.)
Piston Stroke 86 mm (3.39 in.)
Compression ratio 10.6:1
Number of valves per cylinder 4
Fuel injection system Direct injection
Engine aspiration Turbocharger, Intercooler
Valvetrain DOHC
Engine oil capacity 4.5 l (4.76 US qt | 3.96 UK qt)
Coolant capacity 8.7 l (9.19 US qt | 7.65 UK qt)
Kerb Weight 1556-1603 kg (3430.39 – 3534.01 lbs.)
Trunk (boot) space 354 l (12.5 cu. ft.)
Fuel tank capacity 63 l (16.64 US gal | 13.86 UK gal)
Length 4669 mm (183.82 in.)
Width 1826 mm (71.89 in.)
Width including mirrors 2014-2022 mm (79.29 – 79.61 in.)
Height 1468 mm (57.8 in.)
Wheelbase 2672 mm (105.2 in.)
Front track 1560 mm (61.42 in.)
Rear track 1570 mm (61.81 in.)
Ride height (ground clearance) 137 mm (5.39 in.)
Minimum turning circle 11.2 m (36.75 ft.)
Drivetrain All wheel drive (4×4)
Number of gears 8
Gearbox type Automatic transmission SPT
Front suspension Independent, type McPherson with coil spring and anti-roll bar
Rear suspension Double wishbone
Front brakes Ventilated discs, 314.96 mm
Rear brakes Ventilated discs, 289.56 mm
Tires size 235/45 R17 97W; 245/40 R18 97W
Wheel rims size 8J x 17; 8.5J x 18

Powertrain & Engine Architecture

The heart of the WRX (VB) II 2.4 AWD SPT is the FA24F 2.4-liter direct-injection turbocharged boxer-4 engine. This engine represents a significant upgrade over the previous 2.0-liter unit, offering increased displacement and a broader torque curve. The boxer configuration, horizontally opposed cylinders, contributes to a lower center of gravity, enhancing handling. The FA24F utilizes a single-scroll turbocharger with intercooling, delivering peak torque of 350 Nm (258 lb-ft) between 2000 and 5200 rpm. The SPT 8-speed automatic transmission is a key component, designed for quicker, smoother shifts compared to a traditional torque-converter automatic. It features adaptive shift control, adjusting shift points based on driving conditions and driver input. The transmission also incorporates simulated shift feel, providing a more engaging driving experience.

Driving Characteristics

The 2.4-liter engine and SPT automatic combination delivers a noticeably different driving experience compared to the 6-speed manual transmission offered in other WRX trims. While the manual provides a more direct connection to the engine, the automatic prioritizes ease of use and smooth acceleration. The SPT transmission’s programming is geared towards performance, holding gears longer during spirited driving. However, some reviewers noted that the automatic, while improved, doesn’t quite match the responsiveness of the manual. The all-wheel-drive system, a Subaru hallmark, provides excellent traction in various conditions, making the WRX a capable performer year-round. The gear ratios are tuned for a balance between acceleration and fuel efficiency, with the eighth gear providing a comfortable cruising experience on the highway.

Equipment & Trim Levels

The 2.4 AWD SPT trim typically includes a comprehensive suite of standard features. These generally include automatic climate control, a touchscreen infotainment system with Apple CarPlay and Android Auto compatibility, Subaru’s EyeSight driver-assist technology (including adaptive cruise control, lane departure warning, and automatic emergency braking), and a suite of safety features like ABS and stability control. Interior upholstery is typically cloth, with options for leather upgrades. Available options often include a premium audio system, power-adjustable seats, and a moonroof. The SPT trim generally sits in the mid-range of the WRX lineup, offering a step up in convenience and technology compared to the base model, but falling short of the fully-equipped STI trim (when available).

Chassis & Braking

The VB WRX utilizes the Subaru Global Platform (SGP), providing a stiffer and more refined chassis compared to previous generations. The suspension consists of independent McPherson struts at the front and a double-wishbone setup at the rear. Stabilizer bars are standard front and rear, contributing to reduced body roll during cornering. Braking duties are handled by ventilated disc brakes on all four wheels, providing ample stopping power. The size of the front rotors is 314.96 mm, while the rear rotors measure 289.56 mm. The electric power steering system offers precise and responsive steering feel.

Market Reception & Comparison

The 2022+ WRX with the 2.4-liter engine and SPT automatic received mixed reviews. Critics praised the increased power and torque of the new engine, as well as the improved refinement of the chassis. However, some expressed concerns about the automatic transmission’s responsiveness compared to the manual, and the styling of the new generation was polarizing. Compared to the previous generation WRX, the 2.4 AWD SPT offered a significant performance upgrade, but at a higher price point. Fuel economy is rated at around 21 US mpg combined, which is typical for a performance sedan in this class. Reliability reports have been generally positive, with the FA24F engine proving to be robust.

Legacy

The FA24F engine has quickly gained a reputation for reliability and tunability. The SPT automatic transmission, while not as universally praised as the manual, has proven to be a durable and capable unit. In the used car market, the 2022+ WRX 2.4 AWD SPT holds its value relatively well, appealing to buyers seeking a practical and engaging performance sedan with all-weather capability. The combination of Subaru’s renowned all-wheel-drive system, a potent turbocharged engine, and a comfortable interior makes this variant a compelling option for enthusiasts and daily drivers alike.

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