The Chrysler 300 SRT 6.4L V8 Automatic, produced from 2015 to 2021, represents the high-performance variant of the second-generation Chrysler 300 (LX platform). This facelifted model, internally designated as the 300 II, aimed to revitalize the full-size sedan with a focus on American muscle car characteristics. Positioned as the flagship trim, the SRT 6.4L offered a significant performance upgrade over the standard 3.6L Pentastar V6 models, targeting buyers seeking a powerful and luxurious rear-wheel-drive experience. It served as Chrysler’s answer to domestic rivals like the Dodge Charger and Chevrolet Impala SS, and offered a distinctly American alternative to European luxury performance sedans.
Technical Specifications
| Brand | Chrysler |
| Model | 300 |
| Generation | 300 II (facelift 2015) |
| Type (Engine) | SRT 6.4 V8 (476 Hp) Automatic |
| Start of production | 2015 |
| End of production | 2021 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 20.4 l/100 km (11.5 US mpg, 13.8 UK mpg, 4.9 km/l) |
| Fuel consumption (extra urban) | 8.7 l/100 km (27 US mpg, 32.5 UK mpg, 11.5 km/l) |
| Fuel consumption (combined) | 13 l/100 km (18.1 US mpg, 21.7 UK mpg, 7.7 km/l) |
| CO2 emissions | 303 g/km |
| Fuel Type | Petrol (Gasoline) |
| Maximum speed | 282 km/h (175.23 mph) |
| Weight-to-power ratio | 4.1 kg/Hp, 244.6 Hp/tonne |
| Weight-to-torque ratio | 3.1 kg/Nm, 327.3 Nm/tonne |
| Power | 476 Hp @ 6150 rpm |
| Power per litre | 74.2 Hp/l |
| Torque | 637 Nm @ 4250 rpm (469.83 lb.-ft. @ 4250 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | HEMI / ESG |
| Engine displacement | 6417 cm3 (391.59 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 103.9 mm (4.09 in.) |
| Piston Stroke | 94.5 mm (3.72 in.) |
| Compression ratio | 10.9:1 |
| Number of valves per cylinder | 2 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | OHV |
| Engine oil capacity | 6.6 l (6.97 US qt | 5.81 UK qt) |
| Coolant | 14.4 l (15.22 US qt | 12.67 UK qt) |
| Kerb Weight | 1946-1965 kg (4290.2 – 4332.08 lbs.) |
| Fuel tank capacity | 70 l (18.49 US gal | 15.4 UK gal) |
| Permitted trailer load with brakes (12%) | 450 kg (992.08 lbs.) |
| Permitted trailer load without brakes | 450 kg (992.08 lbs.) |
| Permitted towbar download | 45 kg (99.21 lbs.) |
| Length | 5089 mm (200.35 in.) |
| Width | 1902 mm (74.88 in.) |
| Height | 1478 mm (58.19 in.) |
| Wheelbase | 3052 mm (120.16 in.) |
| Front track | 1621 mm (63.82 in.) |
| Rear track | 1639 mm (64.53 in.) |
| Ride height (ground clearance) | 122 mm (4.8 in.) |
| Minimum turning circle | 11.5 m (37.73 ft.) |
| Drivetrain Architecture | Rear wheel drive |
| Number of gears and type of gearbox | 8 gears, automatic transmission |
| Front suspension | Double wishbone, Independent coil spring, Transverse stabilizer |
| Rear suspension | Independent multi-link spring suspension with stabilizer |
| Front brakes | Ventilated discs, 360×32 mm |
| Rear brakes | Ventilated discs, 350×28 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 245/45 R20 |
| Wheel rims size | 9J x 20 |
Powertrain & Engine Architecture
The heart of the 300 SRT is the 6.4-liter HEMI V8 engine, designated as the ESG code. This naturally aspirated powerplant is a descendant of the legendary Chrysler big-block engines, but modernized with features like multi-displacement system (MDS) cylinder deactivation for improved fuel economy during cruising. The engine utilizes a cast iron block with aluminum cylinder heads, and a forged steel crankshaft. Fuel delivery is managed by a multi-port fuel injection system, and the valvetrain employs overhead valves (OHV) with two valves per cylinder. The 6.4L HEMI produces 476 horsepower at 6,150 rpm and 469.83 lb-ft of torque at 4,250 rpm. The engine is mated to a ZF-sourced 8-speed automatic transmission, known for its smooth shifts and wide gear ratio spread. This transmission allows for both spirited acceleration and relaxed highway cruising.
Driving Characteristics
The 300 SRT delivers a distinctly American driving experience – powerful, comfortable, and relatively simple. The 6.4L V8 provides ample low-end torque, making for effortless acceleration in everyday driving. The 8-speed automatic transmission is well-tuned, offering quick and decisive shifts. While not as nimble as some European performance sedans, the 300 SRT offers a confident and stable feel on the road. The rear-wheel-drive layout contributes to a balanced driving experience, although traction can be a concern with spirited acceleration, especially in inclement weather. Compared to the standard 3.6L V6 models, the SRT offers a dramatically different level of performance, with significantly quicker acceleration and a more engaging driving experience. The manual mode on the transmission allows for more driver control, but the automatic generally selects the appropriate gear for most situations.
Equipment & Trim Levels
The SRT trim came standard with a comprehensive list of features, including premium leather upholstery, heated and ventilated front seats, a large touchscreen infotainment system with navigation, a premium sound system, and a host of safety features. Exterior features included unique SRT styling cues, such as a distinctive grille, aggressive front and rear fascias, and a rear spoiler. Optional extras included a dual-pane panoramic sunroof, adaptive cruise control, and blind-spot monitoring. The interior generally featured dark finishes and SRT-specific badging, emphasizing the performance-oriented nature of the vehicle.
Chassis & Braking
The 300 SRT features a robust chassis designed to handle the power of the 6.4L V8. The suspension consists of a double wishbone setup at the front and an independent multi-link setup at the rear, both with coil springs and stabilizer bars. The SRT model received upgraded suspension components compared to the standard 300, including stiffer springs and dampers, for improved handling and reduced body roll. Braking duties are handled by ventilated disc brakes at all four corners, with larger rotors and more powerful calipers than the standard models. The SRT also included ABS (Anti-lock braking system) as standard equipment.
Market Reception & Comparison
The 300 SRT was generally well-received by automotive critics, who praised its powerful engine, comfortable ride, and spacious interior. However, some critics noted its relatively large size and weight, which limited its agility compared to some competitors. Fuel economy was also a common criticism, as the 6.4L V8 is not particularly fuel-efficient. Compared to the standard 3.6L V6 models, the SRT offered a significant performance upgrade, but at a considerable price premium. The SRT also competed with other high-performance sedans, such as the Dodge Charger SRT and the Chevrolet Impala SS, offering a similar blend of power, comfort, and value.
Legacy
The Chrysler 300 SRT 6.4L V8 Automatic has established itself as a desirable used car, particularly among enthusiasts seeking a modern American muscle car experience. The 6.4L HEMI engine is known for its reliability and durability, although regular maintenance is essential. The 8-speed automatic transmission has also proven to be reliable. While fuel economy is not a strong point, the 300 SRT offers a compelling combination of performance, comfort, and value, making it a popular choice in the used car market. Its continued presence on roads today is a testament to its robust engineering and enduring appeal.
