2005-2008 Vauxhall Signum (facelift ) 2.2 (155 Hp) Manual 5-speed

The Vauxhall Signum, particularly the facelifted version introduced in 2005, represents a unique offering from the British automaker. Positioned as a hatchback – though often described as a ‘sports hatch’ – the Signum aimed to blend the practicality of a family car with a more dynamic driving experience. While never officially sold in the United States, the Signum was a significant model for Vauxhall (and its sister brand Opel) in Europe, competing with vehicles like the Ford Mondeo and Volkswagen Passat. The 2005 facelift brought styling revisions and refinements to the original Signum, which was produced from 2003 to 2008. This version, equipped with a 2.2-liter gasoline engine and a five-speed manual transmission, offered a balance of performance and fuel economy for the European market.

Vauxhall Signum (Facelift 2005) 2.2: A Detailed Overview

The Signum was conceived as a more stylish and driver-focused alternative to the traditional large family car. It featured a distinctive fastback design and a focus on interior space and flexibility. The facelifted model further enhanced these qualities, with updated front and rear styling, improved interior materials, and revised engine options. The 2.2-liter engine variant, producing 155 horsepower, was a popular choice, offering a good compromise between performance and running costs.

Engine & Performance

The heart of the 2005 Vauxhall Signum 2.2 is a 2.2-liter (2198 cm³ or 134.13 cu. in.) inline four-cylinder gasoline engine, designated the Z22YH. This engine produces a maximum power output of 155 horsepower (Hp) at 5600 rpm, and a torque of 220 Newton-meters (162.26 lb.-ft.) at 3800 rpm. The engine utilizes direct fuel injection and a double overhead camshaft (DOHC) valvetrain with four valves per cylinder, contributing to its relatively efficient operation. Power per liter is rated at 70.5 Hp/l. The engine’s naturally aspirated design provides a linear power delivery, making it suitable for everyday driving. Coupled with a five-speed manual transmission, the Signum 2.2 can achieve a maximum speed of 210 kilometers per hour (130.49 mph). The weight-to-power ratio is 10 kg/Hp, and 100 Hp/tonne, while the weight-to-torque ratio is 7 kg/Nm, or 141.9 Nm/tonne.

Design & Features

The Signum’s body style is best described as a five-door hatchback, though its sloping roofline gives it a coupe-like appearance. The 2005 facelift brought subtle but noticeable changes to the exterior, including a revised front grille, headlights, and bumper. Inside, the Signum offered a spacious cabin with seating for five passengers, although rear headroom could be limited for taller occupants. A key feature of the Signum was its ‘FlexSpace’ seating system, allowing the rear seats to be folded flat or even removed entirely, creating a large and versatile cargo area. Standard safety features included ABS (Anti-lock braking system) and front ventilated disc brakes, with disc brakes at the rear. The steering system is a hydraulic power-assisted rack and pinion setup. The vehicle rides on 215/55 R16 tires mounted on 6.5J x 16 alloy wheels. The Signum aimed to provide a more premium feel than some of its competitors, with a focus on comfort and convenience.

Technical Specifications

The Vauxhall Signum (facelift 2005) 2.2 offered a compelling package for European buyers seeking a versatile and stylish hatchback. While not sold in the US, it represents an interesting example of Vauxhall’s attempt to create a more distinctive and driver-focused vehicle within the competitive family car segment.