Vauxhall Signum: Executive Comfort Review And Buying Guide

The Vauxhall Signum arrived in 2003 as an intriguing alternative in the executive car segment, positioning itself between family hatchbacks and full luxury saloons. Built on an extended version of the Vectra platform, it aimed to deliver limo-like refinement without the premium price tag. This model stood out for its emphasis on rear passenger space and innovative features, making it a compelling choice for those seeking value-driven luxury.

Design and Exterior Styling

From the outset, the Signum differentiated itself with a more elongated and elegant profile compared to its Vectra sibling. Its stretched wheelbase allowed for a sleeker silhouette, featuring a prominent front grille and, post-facelift, updated large headlights that lent a more assertive face. The curved rear window was a design highlight, praised for its aesthetic appeal and functionality, while a subtly sunken rear bumper maintained safety standards without compromising style.

Available in trims like Exclusiv and Elite, the Signum often came with 18-inch alloys and metallic paints that enhanced its road presence. Though not revolutionary, the exterior conveyed a sense of purpose-built sophistication, appealing to business users who wanted distinction without ostentation.

Interior Refinement and Build Quality

Stepping inside reveals the Signum’s true strengths. Higher-quality materials, especially in leather-upholstered Elite models, elevated the cabin above typical Vauxhall fare. Soft-touch surfaces and thoughtful detailing created a richer ambiance, with controls logically placed on a wide centre console. The steering wheel’s infinite adjustability and wheel-mounted buttons added to the driver-centric feel.

Plastics held up well against rivals like the Volvo S80, though some minor squeaks and rattles persisted in long-term use. The facelifted versions addressed several niggles, resulting in a noticeably more polished product.

Revolutionary FlexSpace Seating System

At the heart of the Signum’s appeal is its FlexSpace rear seating. The outer seats slide fore and aft, reclining up to 30 degrees, allowing passengers to prioritize legroom or boot space. This versatility transformed the car from a five-seater to a practical four-seater with limo-like rear accommodation.

• Outer seats slide independently for customizable space.
• Central seat tips forward to reveal cup holders, ideal for two adults.
• Full rear bench folds flat without removing headrests, creating a level load floor.

The optional Travel Assistant pack further indulges rear occupants with folding tables, a cooler box, litter bin, 12V outlet, and DVD holder—akin to airline business class. Overhead lockers provided damped storage for essentials like phones and glasses.

Engine Options and Performance

The Signum offered a diverse engine lineup, from efficient diesels to potent petrols. The 1.9 CTDi diesel (150hp) exemplified the range’s Jekyll-and-Hyde nature: sluggish below 1,500rpm but punchy thereafter, excelling on motorways with brisk overtaking.

The star was the facelifted 2.8 V6 turbo, replacing the 3.0-litre. With automatic transmission, it delivered serene flexibility, keeping revs low for effortless cruising. A Sport mode sharpened responses, enabling sequential shifting for spirited drives, though it could feel overly aggressive in daily use.

High gearing meant relaxed motorway poise, with the diesel rarely needing sixth gear below 50mph. Petrol variants like the 2.2 offered solid performance but average efficiency.

Driving Dynamics and Ride Comfort

The Signum’s chassis tuning prioritized composure over sportiness. It glided over imperfections more smoothly than the Vectra, isolating the cabin from road and wind noise. Stability shone in high-speed or adverse conditions, instilling confidence.

Front-wheel drive was standard, handling adequately but not engagingly. The Sport button stiffened everything from steering to gearbox, suiting enthusiasts, yet normal mode favored limousine-like calm. Tyre noise on rough surfaces was a minor critique, but overall refinement impressed.

Practicality and Load Capacity

Boot space varied with seat positions: 450 litres standard, expanding massively with folded seats. The design ensured easy access and a flat floor, outpacing Vectra estates in versatility.

Rear legroom was class-leading when seats slid back, though the central spot suited shorter occupants only. Five passengers fit, but four traveled best.

Equipment and Technology

Even base models were generously equipped, with higher trims adding sat-nav, premium audio (7 speakers, 20W/channel but punchy), privacy glass, and xenons. The infotainment, while dated now, functioned reliably, often outperforming modern aftermarket units.

Standard fare included climate control, cruise, and parking sensors. The Elite’s faux wood trim added faux luxury.

Reliability, Ownership Costs, and Used Market

As a used buy, the Signum offers value, with prices low due to its obscurity. Common issues include diesel turbo lag and occasional rattles, but the Vectra platform proved durable.

Running costs suit diesels: 30-40mpg real-world, affordable parts via Vauxhall networks. Fuel economy dipped in town (27mpg for V6), but motorway efficiency impressed (34mpg claimed).

Depreciation hit hard, making survivors bargains. Seek facelifted models (2005+) for refinements.

Pros and Cons at a Glance

• Pros: Exceptional rear space, smooth ride, powerful engines, innovative features, value pricing.
• Cons: Diesel turbo lag, minor NVH issues, average handling, limited five-seat usability.

Who Should Buy a Vauxhall Signum?

Ideal for families or executives valuing comfort and space over badge prestige. Diesel fans get efficiency; V6 seekers, effortless power. Avoid if sporty dynamics are key.

Frequently Asked Questions (FAQs)

Is the Vauxhall Signum reliable?

Generally yes, sharing Vectra durability, though check for diesel chain issues and electronics.

What’s the boot space like?

Up to 1,350 litres with seats folded; flexible thanks to FlexSpace.

How does it compare to the Vectra?

Longer, more refined, with superior rear space and chassis tuning.

Best engine choice?

2.8 V6 for power, 1.9 diesel for economy.

Is it good for motorway driving?

Excellent—quiet, stable, and relaxed at speed.