Vauxhall Cascada, 2013

 

 Vauxhall Cascada, 2013

The all-new Vauxhall Cascada full-size convertible launches the company into a fourth new sector in a year, following on from its Ampera, Mokka and Adam models.

At nearly 4.7 metres in length, the full size, four-seat, fabric-roof Cascada convertible is longer than an Audi A5 Convertible. It is also the first full-sized convertible designed, engineered and manufactured by Vauxhall since the 1930s.

While the Cascada shares its dimensions with some full-sized convertibles, Vauxhall is positioning it in the C-sector due to its highly competitive pricing. The C-segment accounts for approximately one per cent of the total UK car market or around 21,000 units per annum and Vauxhall expects the Cascada to make up approximately ten per cent of this segment's volume per year.

The Cascada's key competitors include the Volkswagen Eos and Golf Cabriolet, the BMW 1-Series Convertible and the Audi A3 Cabriolet. Vauxhall's latest offering is also longer than many other rival convertibles including premium offerings such as the Audi A5 Cabriolet and the BMW 3-Series Convertible.

The Vauxhall Cascada range will be priced from just £23,995 on-the-road, nearly £8,000 less than an Audi A5 Cabriolet, when it arrives in showrooms April 2013.

As with all Vauxhalls, first Cascada owners will benefit from Lifetime Warranty, lasting the life of the car or up to 100,000 miles, whichever comes first.

DESIGN
Cascada's design team, originally headed by Brit Mark Adams, has created a car with classic lines, redolent of the Grandes Routieres (luxury touring cars) of a bygone age, matched with a capacious cabin and high-quality materials.

Exterior Design
At 4696mm long and 1839mm wide (excluding mirrors), Vauxhall Cascada has a broad stance and elegant lines. With the top down, it has a perfectly clean profile with no roof-top cover or visible roll-over protection disturbing the car's silhouette aft of the steeply-raked A-pillar.

The subtle 'blade' on the Cascada's lower body side is mirrored by a sharp crease that swings upward and meets with the wraparound rear light cluster. A gently rising waistline is highlighted by a chrome strip that borders the cockpit, marking the boundary between roof-top and body.

Sculpted with a purposeful power bulge, Cascada's bonnet tops a deep front grille with bold chrome applications. The fog lights are carried in two overturned 'sharkfin' elements, which are enhanced by chrome inserts. Using LED technology, the daytime running lights in the headlamps and the rear lights incorporate Vauxhall's 'wing' signature. In the rear, the LED modules are diffused to give a solid and sharp light signal - typical of cars in the premium sector. A chrome strip linking the boot-mounted light units matches a similar bar across the front of the car.

The Cascada's fabric roof can be specified in one of three colours, which can be coordinated with one of ten body colours. Other personalisation options include an array of six different alloy wheel choices with sizes up to 20-inch.

The Interior
The Vauxhall Cascada's cabin mixes the well-equipped functionality of an Insignia's interior with handcrafted modules not found in any other Vauxhall.

Wrapped in a soft-touch material with high-quality stitching, the instrument cluster tops a wing-shaped panel which flows into the doors and frames the area around each front occupant. All-new, deeply contoured seats are available in a range of embossed fabrics and leathers, and customers have the option of ergonomic, Nappa-leather trimmed seats, which can be heated or ventilated. An Easy Entry system allows access to the rear seats, and electric seat belt presenters make securing front occupants less of a chore.

With a minimum load volume of 280 litres with the roof down, and up to 380 litres roof up, the Cascada is an exceptionally practical convertible. In addition, the rear seats benefit from Vauxhall's FlexFold system, which electrically releases and folds down the 50:50 split rear seats, allowing longer objects to be carried with ease.

In the cabin, several large storage spaces are available: one in each door and one under the instrument panel, and thanks to the use of a standard Electronic Park Brake across the range, a further cubby is located between the front seats.

CHASSIS, DYNAMICS & BODY CONSTRUCTION
Maximising torsional stiffness in a convertible's body is critical to maintaining a high standard of vehicle dynamics. Despite being significantly larger than Vauxhall's last convertible model, the TwinTop, by 71mm in its wheelbase and 56mm/70mm (front/rear) in its tracks, the Cascada's body is 43 per cent stiffer torsionally and 10 per cent more resistant to bending forces.

Targeted underbody strengthening helps the Cascada achieve these figures. Crossed steel bars are mounted to the Watt's link, across the B-pillars and front subframe, while high-strength tubular steel reinforcement sits inside each of the A-pillars. Collectively, these stiffen the body substantially, leading to precise handling and an exceptionally high degree of acoustic comfort.

Chassis
Vauxhall's HiPerStrut suspension has been adapted from the 325ps Insignia VXR and employed at the front of the Cascada. The HiPerStruts combine all the benefits of a conventional MacPherson strut set-up - compact packaging and light weight - but without the drawbacks of that system, such as torque-steer and a loss of traction under hard cornering. The HiPerStrut achieves this by a reduction in kingpin inclination, meaning no loss of negative camber during cornering, and therefore greater stability overall.

At the rear, the Cascada uses a combination of compound crank and Watt's link, with the thickness of each different model's axle beam varying to cater for different kerbweights. The Watt's link rods are connected to a cross member just behind the rear wheels' centre line. Any lateral force exerted on one side is compensated for by an equal force on the opposite wheel.

Cars using a compound crank and Watt's link are rare in the industry, but it's an innovative solution which provides a unique blend of excellent packaging and strong rear-end stability during cornering.