The MG ZT-T 2.5 V6 Automatic, produced from 2004 to 2005, represents a unique offering from the final years of MG’s independent operation. This variant of the ZT-T (Tourer – MG’s designation for its station wagon) combined a naturally aspirated 2.5-liter V6 engine with a five-speed automatic transmission. Positioned as a more luxurious and performance-oriented trim within the ZT-T range, it aimed to provide a comfortable and capable grand touring experience. The ZT-T itself was based on the Rover 75 platform (internally known as X20), a vehicle developed under BMW ownership, and represented MG’s attempt to inject some sporting character into a traditionally conservative platform. The facelifted model, introduced in 2004, featured revised styling cues and minor mechanical updates.
Technical Specifications
| Brand | MG |
| Model | ZT |
| Generation | ZT-T (facelift 2004) |
| Type (Engine) | 2.5 V6 (177 Hp) Automatic |
| Start of production | 2004 |
| End of production | 2005 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Station wagon (estate) |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 16.2 l/100 km (14.5 US mpg, 17.4 UK mpg, 6.2 km/l) |
| Fuel consumption (extra urban) | 8.1 l/100 km (29 US mpg, 34.9 UK mpg, 12.3 km/l) |
| Fuel consumption (combined) | 11.1 l/100 km (21.2 US mpg, 25.4 UK mpg, 9 km/l) |
| CO2 emissions | 264 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 60 mph | 9.3 sec |
| Maximum speed | 212 km/h (131.73 mph) |
| Emission standard | Euro 3 |
| Weight-to-power ratio | 9 kg/Hp, 111.7 Hp/tonne |
| Weight-to-torque ratio | 6.6 kg/Nm, 151.4 Nm/tonne |
| Power | 177 Hp @ 6500 rpm |
| Power per litre | 70.9 Hp/l |
| Torque | 240 Nm @ 4000 rpm (177.01 lb.-ft. @ 4000 rpm) |
| Maximum engine speed | 6750 rpm |
| Engine layout | Front, Transverse |
| Engine Model/Code | KV6 / 25K4F |
| Engine displacement | 2497 cm3 (152.38 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 80 mm (3.15 in.) |
| Piston Stroke | 82.6 mm (3.25 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 | 5.2 l (5.49 US qt | 4.58 UK qt) |
| Coolant | 7.5 l (7.93 US qt | 6.6 UK qt) |
| Kerb Weight | 1585-1715 kg (3494.33 – 3780.93 lbs.) |
| Max. weight | 2090 kg (4607.66 lbs.) |
| Max load | 375-505 kg (826.73 – 1113.33 lbs.) |
| Trunk (boot) space – minimum | 400 l (14.13 cu. ft.) |
| Trunk (boot) space – maximum | 1222 l (43.15 cu. ft.) |
| Fuel tank capacity | 65 l (17.17 US gal | 14.3 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Permitted trailer load with brakes (12%) | 1600 kg (3527.4 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 100 kg (220.46 lbs.) |
| Length | 4791 mm (188.62 in.) |
| Width | 1778 mm (70 in.) |
| Height | 1428 mm (56.22 in.) |
| Wheelbase | 2746 mm (108.11 in.) |
| Minimum turning circle | 11.36 m (37.27 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 | 5 gears, automatic transmission |
| Front suspension | Independent, type McPherson with coil spring and anti-roll bar |
| Rear suspension | Independent multi-link spring suspension with stabilizer |
| Front brakes | Ventilated discs, 284 mm |
| Rear brakes | Ventilated discs, 276 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | 225/45 R18 |
| Wheel rims size | 7.5J x 18 |
Powertrain & Engine Architecture
The heart of the ZT-T 2.5 V6 Automatic is the KV6 engine, a 60-degree V6 designed and built by MG. This engine, designated 25K4F in this application, displaced 2.5 liters and featured a cast iron block with aluminum cylinder heads. It utilized multi-port fuel injection and a double overhead camshaft (DOHC) valvetrain with four valves per cylinder. The KV6 was known for its relatively smooth operation and distinctive exhaust note. The five-speed automatic transmission, sourced from Japan (likely from Aisin), was chosen for its comfort and ease of use, aligning with the ZT-T’s grand touring aspirations. While not a particularly advanced transmission, it provided smooth shifts and adequate performance for the engine’s output.
Driving Characteristics
The 2.5 V6 Automatic ZT-T offered a comfortable and refined driving experience. With 177 horsepower and 240 lb-ft of torque, acceleration was respectable, achieving 0-60 mph in around 9.3 seconds. However, it wasn’t a particularly quick car compared to some of its rivals. The automatic transmission, while smooth, did detract somewhat from the driving experience, offering less engagement than the available manual gearbox. The gear ratios were tuned for comfortable cruising rather than outright performance. The ZT-T’s weight, ranging from 3494 to 3781 pounds, also contributed to a less agile feel compared to lighter competitors.
Equipment & Trim Levels
The 2.5 V6 Automatic trim typically included features such as leather upholstery, climate control, electric windows and mirrors, and an upgraded audio system. Alloy wheels were standard, and options included sunroofs, heated seats, and parking sensors. The interior design was generally well-appointed, reflecting the Rover 75’s origins, but materials quality wasn’t always on par with more premium European rivals. The ZT-T aimed to offer a good balance of comfort and features for the price.
Chassis & Braking
The ZT-T utilized a McPherson strut front suspension and an independent multi-link rear suspension, providing a comfortable ride quality. Stabilizer bars were fitted front and rear to reduce body roll. Braking was handled by ventilated discs all around, with ABS (Anti-lock Braking System) as standard. The braking system was adequate for the car’s weight and performance, but not particularly outstanding. The steering was hydraulic power-assisted rack and pinion, offering reasonable feel and precision.
Market Reception & Comparison
The MG ZT-T 2.5 V6 Automatic received mixed reviews. Critics praised the engine’s smoothness and the car’s comfortable ride, but noted the lack of outright performance and the somewhat dated interior design. Compared to the 1.8-liter and 2.0-liter variants, the 2.5 V6 offered significantly more power and refinement, but at a higher price point. The 2.5 V6 was also more expensive to run due to its higher fuel consumption. Against rivals like the Ford Mondeo and Vauxhall/Opel Vectra, the ZT-T offered a more distinctive character but lacked the brand recognition and established reputation of its competitors.
Legacy
The MG ZT-T 2.5 V6 Automatic, along with the rest of the MG range, represents a poignant chapter in British automotive history. Production ceased in 2005 when MG Rover went into administration. Today, these cars are relatively rare and are gaining a following among enthusiasts. The KV6 engine is generally considered to be a reliable unit, although regular maintenance is essential. Parts availability can be a challenge, but a dedicated community of owners and specialists exists to support these vehicles. The ZT-T 2.5 V6 Automatic offers a unique blend of British style, V6 power, and practicality, making it an interesting and increasingly collectible classic.
