The Citroën CX 25 GTi Automatic, produced between 1983 and 1985, represents a compelling blend of luxury, performance, and advanced engineering within the first generation (Phase I) of the CX model line. Positioned as a premium variant, the 25 GTi Automatic occupied a higher tier in the CX range, offering a more powerful engine and the convenience of an automatic transmission compared to the base models. It was a flagship offering during a period when Citroën was renowned for its innovative hydropneumatic suspension and distinctive styling. The CX, succeeding the iconic DS, aimed to continue Citroën’s tradition of providing a uniquely comfortable and sophisticated driving experience, and the 25 GTi Automatic exemplified this ambition.
Technical Specifications
| Brand | Citroën |
| Model | CX |
| Generation | CX I (Phase I, 1982) |
| Type (Engine) | 25 GTi (138 Hp) Automatic |
| Start of production | 1983 |
| End of production | 1985 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Hatchback |
| Seats | 5 |
| Doors | 5 |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 11.7 sec |
| Acceleration 0 – 62 mph | 11.7 sec |
| Acceleration 0 – 60 mph | 11.1 sec |
| Maximum speed | 194 km/h (120.55 mph) |
| Weight-to-power ratio | 10 kg/Hp, 99.6 Hp/tonne |
| Weight-to-torque ratio | 6.6 kg/Nm, 152.3 Nm/tonne |
| Power | 138 Hp @ 5000 rpm |
| Power per litre | 55.2 Hp/l |
| Torque | 211 Nm @ 4000 rpm (155.63 lb.-ft. @ 4000 rpm) |
| Maximum engine speed | 6000 rpm |
| Engine layout | Front, Transverse |
| Engine Model/Code | M25.659 |
| Engine displacement | 2499 cm3 (152.5 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 93 mm (3.66 in.) |
| Piston Stroke | 92 mm (3.62 in.) |
| Compression ratio | 8.75:1 |
| Number of valves per cylinder | 2 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Engine oil capacity | 5 l (5.28 US qt | 4.4 UK qt) |
| Coolant | 12.3 l (13 US qt | 10.82 UK qt) |
| Kerb Weight | 1385 kg (3053.4 lbs) |
| Max. weight | 1885 kg (4155.71 lbs) |
| Max load | 500 kg (1102.31 lbs) |
| Trunk (boot) space – minimum | 325 l (11.48 cu. ft.) |
| Fuel tank capacity | 68 l (17.96 US gal | 14.96 UK gal) |
| Length | 4659 mm (183.43 in.) |
| Width | 1770 mm (69.69 in.) |
| Height | 1360 mm (53.54 in.) |
| Wheelbase | 2845 mm (112.01 in.) |
| Front track | 1522 mm (59.92 in.) |
| Rear (Back) track | 1368 mm (53.86 in.) |
| Front overhang | 1050 mm (41.34 in.) |
| Rear overhang | 764 mm (30.08 in.) |
| Drag coefficient (Cd) | 0.36 |
| Minimum turning circle | 11.7 m (38.39 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 |
Powertrain & Engine Architecture
The heart of the CX 25 GTi Automatic is the M25.659 engine, a 2.5-liter inline-four cylinder gasoline engine. This engine featured a cast iron block and an aluminum cylinder head, employing a dual overhead camshaft (DOHC) design with two valves per cylinder. Fuel delivery was managed by a Bosch multi-port fuel injection system, contributing to improved efficiency and responsiveness compared to earlier carbureted Citroën engines. The engine produced 138 horsepower at 5000 rpm and 211 Nm (155.63 lb-ft) of torque at 4000 rpm. 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 CX’s focus on comfortable cruising.
Driving Characteristics
The CX 25 GTi Automatic offered a distinctly refined driving experience. The hydropneumatic suspension, a Citroën hallmark, provided an exceptionally smooth ride, absorbing bumps and imperfections in the road with remarkable ease. The automatic transmission, while offering convenience, did slightly diminish the performance potential of the 2.5-liter engine compared to the five-speed manual version. Acceleration from 0-60 mph took approximately 11.1 seconds, and top speed was around 120.55 mph. The three-speed automatic’s gear ratios were optimized for comfortable cruising rather than outright performance. The power delivery was relatively linear, making the car easy to drive in everyday situations. However, drivers seeking a more engaging experience often preferred the manual transmission for its greater control and responsiveness.
Equipment & Trim Levels
The 25 GTi Automatic trim level included a generous array of standard features. Interior appointments typically included comfortable cloth upholstery, often in a distinctive patterned design. Power steering, central locking, and electric windows were standard. The dashboard featured a comprehensive instrument cluster with gauges for speed, engine temperature, fuel level, and other vital information. Optional extras included leather upholstery, a sunroof, and upgraded audio systems. The CX’s interior was known for its ergonomic design and comfortable seating, prioritizing driver and passenger well-being.
Chassis & Braking
The CX featured a robust chassis designed to complement its advanced suspension system. The front suspension utilized independent double wishbones, while the rear employed a trailing arm setup, both incorporating the hydropneumatic spheres that provided the car’s signature ride quality. Braking duties were handled by ventilated discs at the front and solid discs at the rear, providing adequate stopping power for the car’s weight and performance. The steering system was a rack and pinion setup, offering precise and responsive control. Stabilizer bars were fitted to both the front and rear axles to reduce body roll during cornering.
Market Reception & Comparison
The CX 25 GTi Automatic was generally well-received by automotive critics, who praised its comfortable ride, sophisticated engineering, and distinctive styling. However, some reviewers noted that the automatic transmission slightly dulled the engine’s performance. Compared to the manual transmission version, the automatic offered less driver involvement but greater convenience. Against competitors like the Peugeot 505 and the Rover SD1, the CX stood out for its unique hydropneumatic suspension and its avant-garde design. Fuel economy was reasonable for the time, but not exceptional, averaging around 20-25 mpg in mixed driving conditions. Reliability was generally good, although the complexity of the hydropneumatic system could lead to occasional maintenance issues.
Legacy
The Citroën CX 25 GTi Automatic remains a sought-after classic car today, appreciated for its unique character and engineering innovation. The M25.659 engine, while not known for being particularly high-strung, proved to be relatively durable with proper maintenance. The automatic transmission, while not as sporty as the manual, has also proven to be reasonably reliable. However, the hydropneumatic suspension requires regular attention and specialized knowledge to maintain properly. Finding qualified mechanics to work on these systems can be a challenge. Despite these potential maintenance concerns, the CX 25 GTi Automatic continues to offer a uniquely rewarding driving experience, embodying Citroën’s commitment to innovation and comfort.
