# Vauxhall Signum — Used Car Buying Guide

AutoScout's analysis of the Vauxhall Signum on the UK used-car market. Backed by 33 million DVSA MOT tests, current AutoTrader pricing, and depreciation curves derived from CAP/Glass's Guide data.

Live interactive report: https://autoscout.fyi/cars/vauxhall-signum

## Verdict

- **Best value year**: 2007
- **Ideal trim**: Design
- **Target mileage**: 90,000–120,000 miles
- **Max previous owners**: 5
- **Target price**: £2,200

## Why this model

The Vauxhall Signum is a bit of an oddball, but it offers a huge amount of space and comfort for very little money. It's essentially a stretched Vectra hatchback, giving you executive car legroom in the back without the executive price tag. It's a solid choice if you need a cheap, practical workhorse and don't mind its slightly dated looks and interior. Parts are generally easy to find due to its Vectra underpinnings, and many independent garages are familiar with them.

## What you should pay

The Signum is well past its main depreciation curve and is now firmly in the 'budget motoring' category. Prices are very low, typically ranging from £1,000 to £3,000 for a running, MOT'd example. The price is heavily dependent on condition, service history, and mileage rather than trim level. Don't expect to pay much more than £2,500 for even the best examples. Many will be under £1,500.

## Which trim to buy

The 'Design' trim offers a good balance of features without being overly complex or expensive. You'll typically get alloy wheels, climate control, cruise control, and better interior trim than the basic 'Exclusiv' models. The 'Elite' trim adds leather and more electrics, but these extra features are more prone to failure on an older car and don't significantly increase the car's value on the used market. The Design trim gives you the best bang for your buck in terms of comfort and convenience for a car of this age and price point.

## What to check before you buy

- Electrical gremlins (e.g., central locking, dashboard lights)
- Suspension components (bushes, springs, dampers wear out)
- EGR valve and DPF issues on diesel models
- Power steering pump leaks
- Rust on older examples, especially sills and wheel arches

## Running costs

Running costs for a Signum will be dominated by fuel and maintenance for an older car. For a 1.9 CDTi diesel, expect around 42-45 mpg, which at current UK diesel prices (approx. £1.55/litre or £7.05/gallon) works out to about 16-17 pence per mile. Road tax (VED) for a 2007 1.9 CDTi is £290 per year. Insurance will be relatively low due to its age and modest performance, likely in groups 15-20. Maintenance can be unpredictable for a car of this age, so budget for potential repairs.

## Key stats

- **Fuel Type**: Diesel
- **Horsepower**: 150 hp (1.9 CDTi)
- **Mpg**: 42-45 mpg (combined)
- **Reliability Score**: Average for its era, but age is the main factor now
- **Safety Rating**: 4-star Euro NCAP (based on Vectra, 2003)

## Trim comparison

| Trim | Price new | Price used | Key features |
| --- | --- | --- | --- |
| Exclusiv | £18,000 | £1,200 | Air conditioning; Electric front windows; CD player |
| Design | £20,000 | £1,800 | Climate control; 17-inch alloy wheels; Cruise control |
| Elite | £23,000 | £2,200 | Leather upholstery; Heated front seats; Electric adjustable seats |

## Depreciation forecast

| Year | Estimated value | Retention |
| --- | --- | --- |
| 2026 | £2,200 | 100% |
| 2027 | £2,000 | 91% |
| 2028 | £1,800 | 82% |
| 2029 | £1,600 | 73% |
| 2030 | £1,400 | 64% |

The Vauxhall Signum is already well past its main depreciation curve. You're buying it at or very near its absolute lowest value. Any further depreciation will be minimal in monetary terms, but percentage-wise it can still look significant because the starting value is so low. The 'sweet spot' for this car was years ago; now it's a budget buy where condition and maintenance history are far more important than age for its future value.

Total value lost since new: 90%.

## Alternatives to consider

- Ford Mondeo (Mk3/Mk4)
- Skoda Superb (Mk1)
- Volkswagen Passat (B5.5/B6)

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Source: AutoScout (https://autoscout.fyi). Part of a review of the UK used-car market across 500+ models.