The Chevrolet HHR 2.4i 16V, produced from 2005 to May 2011, represents a unique offering in the compact station wagon segment. Positioned as a retro-styled vehicle evoking the classic Chevrolet Suburban panel van of the late 1940s and early 1950s, the HHR (Heritage High Roof) aimed to blend distinctive aesthetics with the practicality of a small cargo carrier. The 2.4-liter engine variant, producing 175 horsepower, served as a mid-range option within the HHR lineup, slotting between the base 2.2-liter engine and the later-introduced turbocharged 2.0-liter Ecotec. It was primarily marketed towards individuals seeking a versatile vehicle with a distinctive look, appealing to those desiring a blend of utility and style.
Technical Specifications
| Brand | Chevrolet |
| Model | HHR |
| Generation | HHR |
| Type (Engine) | 2.4 i 16V (175 Hp) |
| Start of production | 2005 |
| End of production | May, 2011 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Station wagon (estate) |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 10.6 l/100 km (22.2 US mpg) |
| Fuel consumption (extra urban) | 9 l/100 km (26.1 US mpg) |
| Fuel consumption (combined) | 9.8 l/100 km (24 US mpg) |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 8.3 kg/Hp, 120.3 Hp/tonne |
| Weight-to-torque ratio | 6.4 kg/Nm, 156.7 Nm/tonne |
| Power | 175 Hp @ 6200 rpm |
| Power per litre | 73.4 Hp/l |
| Torque | 228 Nm @ 5000 rpm (168.16 lb.-ft. @ 5000 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | LE5 |
| Engine displacement | 2384 cm3 (145.48 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 88 mm (3.46 in.) |
| Piston Stroke | 98 mm (3.86 in.) |
| Compression ratio | 10.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Engine oil capacity | 4.7 l (4.97 US qt | 4.14 UK qt) |
| Coolant | 8.2 l (8.66 US qt | 7.21 UK qt) |
| Kerb Weight | 1455 kg (3207.73 lbs.) |
| Trunk (boot) space – minimum | 638 l (22.53 cu. ft.) |
| Trunk (boot) space – maximum | 1785 l (63.04 cu. ft.) |
| Fuel tank capacity | 49 l (12.94 US gal | 10.78 UK gal) |
| Length | 4475 mm (176.18 in.) |
| Width | 1755 mm (69.09 in.) |
| Height | 1603 mm (63.11 in.) |
| Wheelbase | 2628 mm (103.46 in.) |
| Front track | 1491 mm (58.7 in.) |
| Rear (Back) track | 1491 mm (58.7 in.) |
| Minimum turning circle | 11 m (36.09 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the front wheels of the vehicle. |
| Drive wheel | Front wheel drive |
| Number of gears | 5 gears, manual transmission |
| Front suspension | Spring Strut |
| Rear suspension | Transverse stabilizer |
| Front brakes | Ventilated discs |
| Rear brakes | Drum |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Tires size | 215/55 R16 |
| Wheel rims size | 6.5J X 16 |
Powertrain & Engine Architecture
The Chevrolet HHR 2.4i utilizes the LE5 2.4-liter inline-four cylinder engine, a member of the GM Ecotec family. This engine is a naturally aspirated design featuring a cast iron block and an aluminum cylinder head. It employs multi-port fuel injection and a double overhead camshaft (DOHC) valvetrain with four valves per cylinder, contributing to its relatively efficient power output. The engine’s 10.5:1 compression ratio further aids in maximizing combustion efficiency. The 2.4L engine was paired with a five-speed manual transmission as standard, offering a direct connection to the drivetrain. The engine’s design prioritized reliability and affordability, making it a common choice in various GM vehicles of the era.
Driving Characteristics
The HHR 2.4i, with its 175 horsepower and 168 lb-ft of torque, provided adequate, though not exhilarating, performance. Acceleration from 0 to 60 mph typically took around 8-9 seconds. The five-speed manual transmission allowed for reasonable control over the engine’s powerband, but the engine lacked the low-end grunt of some competitors. Compared to the base 2.2-liter engine, the 2.4-liter offered a noticeable improvement in acceleration and overall responsiveness. However, it fell short of the performance offered by the later turbocharged 2.0-liter Ecotec variant. The HHR’s relatively high curb weight of approximately 3200 pounds contributed to a somewhat ponderous feel, particularly during spirited driving. The gear ratios were tuned for fuel efficiency and everyday usability rather than outright performance.
Equipment & Trim Levels
The 2.4i trim of the HHR typically included standard features such as air conditioning, power windows and locks, and an AM/FM stereo with a CD player. Higher trim levels, such as the LT, added features like cruise control, upgraded interior trim, and alloy wheels. Optional extras included a sunroof, premium sound system, and remote keyless entry. Interior upholstery was typically cloth, with leather options available on higher trims. The dashboard layout was functional and straightforward, with easy-to-read gauges and controls. The HHR’s unique interior design, with its retro-inspired elements, contributed to its overall distinctive character.
Chassis & Braking
The Chevrolet HHR utilized a front-wheel-drive platform with a MacPherson strut front suspension and a twist-beam rear suspension. The front suspension incorporated a stabilizer bar to reduce body roll during cornering. Braking duties were handled by ventilated discs at the front and drum brakes at the rear. Anti-lock Braking System (ABS) was standard. The suspension tuning prioritized ride comfort over sporty handling, resulting in a relatively soft and compliant ride quality. The drum brakes on the rear were a cost-saving measure, and while adequate for normal driving, they lacked the stopping power of disc brakes.
Market Reception & Comparison
The Chevrolet HHR received mixed reviews from automotive critics. While its unique styling was generally praised, some reviewers criticized its handling and overall driving experience. The 2.4-liter engine was considered a good compromise between performance and fuel economy, but it wasn’t a standout performer in its class. Fuel economy figures averaged around 24 mpg combined, which was competitive for the time. Compared to other compact wagons, such as the Dodge Caliber or the Toyota Matrix, the HHR offered a more distinctive style but lacked the refinement and driving dynamics of some competitors. Reliability was generally considered average, with some reports of minor issues with the engine and transmission.
Legacy
The Chevrolet HHR was discontinued in 2011 due to declining sales. While it didn’t achieve mainstream success, it has developed a cult following among enthusiasts who appreciate its unique styling and retro charm. The 2.4-liter LE5 engine is known for its relative reliability, and well-maintained examples can provide years of service. On the used car market, HHRs are relatively affordable, making them an attractive option for budget-conscious buyers seeking a distinctive and practical vehicle. The HHR remains a memorable example of Chevrolet’s attempt to blend retro design with modern functionality.
