The Citroën CX 2400 GTi Automatic, produced between 1980 and 1982, represented a compelling blend of luxury, performance, and Citroën’s famed hydropneumatic suspension technology. Positioned as a premium variant within the CX Series I (1974-1984) lineup, the 2400 GTi Automatic offered a more refined driving experience compared to the base models, while remaining more accessible than the top-of-the-line Pallas trim. It served as a flagship model for Citroën in a period of significant change, embodying the company’s commitment to innovation despite financial challenges. The CX, as a whole, was intended to replace the venerable DS, continuing the tradition of advanced engineering and distinctive styling.
Technical Specifications
| Brand | Citroen |
| Model | CX |
| Generation | CX I |
| Type (Engine) | 2400 GTi (130 Hp) Automatic |
| Start of production | 1980 year |
| End of production | 1982 year |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Hatchback |
| Seats | 5 |
| Doors | 5 |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 12 sec |
| Acceleration 0 – 62 mph | 12 sec |
| Acceleration 0 – 60 mph | 11.4 sec |
| Maximum speed | 185 km/h (114.95 mph) |
| Weight-to-power ratio | 10.5 kg/Hp, 94.9 Hp/tonne |
| Weight-to-torque ratio | 6.8 kg/Nm, 146.7 Nm/tonne |
| Power | 130 Hp @ 5000 rpm |
| Power per litre | 55.4 Hp/l |
| Torque | 201 Nm @ 3750 rpm (148.25 lb.-ft. @ 3750 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | M23.622 |
| Engine displacement | 2347 cm3 (143.22 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 93.5 mm (3.68 in.) |
| Piston Stroke | 85.5 mm (3.37 in.) |
| Compression ratio | 9:1 |
| Number of valves per cylinder | 2 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Engine oil capacity | 5.3 l (5.6 US qt | 4.66 UK qt) |
| Coolant | 11 l (11.62 US qt | 9.68 UK qt) |
| Kerb Weight | 1370 kg (3020.33 lbs.) |
| Max. weight | 1880 kg (4144.69 lbs.) |
| Max load | 510 kg (1124.36 lbs.) |
| Trunk (boot) space – minimum | 325 l (11.48 cu. ft.) |
| Fuel tank capacity | 68 l (17.96 US gal | 14.96 UK gal) |
| Permitted trailer load with brakes (12%) | 1300 kg (2866.01 lbs.) |
| Length | 4666 mm (183.7 in.) |
| Width | 1734 mm (68.27 in.) |
| Height | 1360 mm (53.54 in.) |
| Wheelbase | 2845 mm (112.01 in.) |
| Front track | 1474 mm (58.03 in.) |
| Rear (Back) track | 1360 mm (53.54 in.) |
| Front overhang | 1057 mm (41.61 in.) |
| Rear overhang | 764 mm (30.08 in.) |
| Ride height (ground clearance) | 155 mm (6.1 in.) |
| Drag coefficient (Cd) | 0.37 |
| Minimum turning circle (turning diameter) | 11.80 m (38.71 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the front wheels of the vehicle. |
| Drive wheel | Front wheel drive |
| Number of gears and type of gearbox | 3 gears, automatic transmission |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Steering type | Steering rack and pinion |
| Wheel rims size | 5.5J x 14 |
Introduction
The Citroën CX 2400 GTi Automatic, produced from 1980 to 1982, was a sophisticated grand tourer that built upon the innovative foundation of the CX Series I. The CX was designed as a replacement for the iconic DS, inheriting its commitment to advanced technology, particularly the hydropneumatic suspension system. The 2400 GTi Automatic occupied a middle ground in the CX range, offering a balance between performance and comfort. It was positioned above the base 2000 models but below the more luxurious Pallas trim, appealing to buyers seeking a refined driving experience without the higher price tag. The “GTi” designation, while not indicative of a particularly sporty character in the modern sense, signified a higher level of equipment and a more powerful engine than the standard CX variants.
Powertrain & Engine Architecture
The heart of the CX 2400 GTi Automatic was the M23.622, a 2.4-liter (2347 cc) inline-four cylinder engine. This engine featured a cast iron block and an aluminum cylinder head, employing a single overhead camshaft (SOHC) design with two valves per cylinder. Fuel delivery was handled by a Bosch multi-port fuel injection system, contributing to improved efficiency and smoother operation compared to carbureted engines. The engine produced 130 horsepower at 5000 rpm and 201 Nm (148.25 lb-ft) of torque at 3750 rpm. The engine’s transverse mounting and front-wheel drive configuration were hallmarks of Citroën’s engineering philosophy at the time. The automatic transmission was a three-speed unit, designed to provide smooth and effortless gear changes. While not known for its blistering acceleration, the transmission was well-suited to the GTi’s grand touring character.
Driving Characteristics
The CX 2400 GTi Automatic offered a unique driving experience largely defined by its hydropneumatic suspension. This system, a Citroën hallmark, provided an exceptionally smooth and comfortable ride, absorbing bumps and imperfections in the road with remarkable ease. The automatic transmission, while offering convenience, did slightly diminish the car’s overall performance compared to the manual transmission versions. Acceleration from 0 to 60 mph took approximately 11.4 seconds, and the top speed was around 115 mph. The three-speed automatic transmission had relatively widely spaced gear ratios, which meant that the engine could feel somewhat strained during rapid acceleration. However, in typical cruising conditions, the transmission provided relaxed and refined progress. The steering, while power-assisted, lacked some of the feedback found in more modern vehicles, but it was light and easy to use.
Equipment & Trim Levels
The 2400 GTi Automatic came standard with a generous array of features for its time. Interior appointments included comfortable cloth upholstery, a wood-trimmed dashboard, and power-assisted steering. Other standard equipment included central locking, electric windows, and a high-quality stereo system. Optional extras included leather upholstery, air conditioning, and a sunroof. The GTi trim also featured distinctive exterior styling cues, such as alloy wheels and additional chrome trim. The interior layout was typically Citroën – functional, ergonomic, and with a focus on driver comfort. The dashboard featured a comprehensive array of gauges, including a speedometer, tachometer, fuel gauge, and coolant temperature gauge.
Chassis & Braking
The CX 2400 GTi Automatic utilized a robust chassis with independent suspension on all four wheels, of course utilizing the hydropneumatic system. The front suspension featured double wishbones, while the rear suspension employed trailing arms. This setup contributed to the car’s exceptional ride quality and handling. Braking duties were handled by ventilated discs at the front and solid discs at the rear. The braking system was effective, providing ample stopping power for the car’s weight and performance. The steering was a rack-and-pinion system with power assistance, offering light and precise control. The car rode on 5.5J x 14 inch wheels, typically fitted with 185/65 R14 tires.
Market Reception & Comparison
The Citroën CX 2400 GTi Automatic was generally well-received by automotive critics. It was praised for its exceptional ride quality, comfortable interior, and refined driving experience. However, some critics noted that the automatic transmission detracted from the car’s overall performance. Compared to the manual transmission versions, the automatic was slightly slower and less engaging to drive. Compared to the base CX models, the 2400 GTi Automatic offered a significant upgrade in terms of performance and equipment. Fuel economy was reasonable for the time, averaging around 22-25 mpg in mixed driving conditions. Reliability was generally good, although the complex hydropneumatic suspension system required regular maintenance.
Legacy
The Citroën CX 2400 GTi Automatic remains a highly regarded classic car, appreciated for its innovative technology, distinctive styling, and comfortable driving experience. The hydropneumatic suspension system, while requiring specialized maintenance, continues to be a defining feature of the CX. Today, well-maintained examples of the 2400 GTi Automatic are sought after by collectors and enthusiasts. The car’s unique character and engineering sophistication ensure its place in automotive history. While parts availability can be a challenge, a dedicated community of CX owners and specialists exists to support the preservation of these remarkable vehicles. The M23 engine, while not known for being particularly powerful, is generally considered to be a reliable unit when properly maintained.
