The Opel Tigra B TwinTop, specifically the 1.8i 16V ECOTEC (125 Hp) variant, represents a significant evolution from its predecessor and a notable entry into the burgeoning compact coupe-cabriolet segment in Europe during the mid-2000s. Produced by the German automaker Opel, then a subsidiary of General Motors, this second-generation Tigra, designated as “B,” was manufactured from October 2004 to June 2009. Unlike the original Tigra, which was a fixed-roof 2+2 coupe based on the Corsa B platform, the Tigra B TwinTop embraced the increasingly popular trend of retractable hardtop convertibles. This innovative design allowed it to offer the security and weather protection of a coupe with the open-air exhilaration of a convertible, all within a compact, two-seater package.
Primarily aimed at the European market, where it competed with similar offerings from other manufacturers, the Opel Tigra B TwinTop 1.8i 16V ECOTEC (125 Hp) was never officially sold in the United States. Its appeal lay in its stylish design, efficient powertrain options, and the versatility of its “TwinTop” roof mechanism. This particular 1.8-liter model was positioned as a more performance-oriented option within the Tigra B lineup, balancing spirited driving dynamics with reasonable fuel economy, making it an attractive proposition for consumers seeking a fashionable and fun-to-drive convertible for urban environments and weekend escapes.
Opel Tigra B TwinTop 1.8i 16V ECOTEC: Powertrain and Performance
Under the hood, the Opel Tigra B TwinTop 1.8i 16V ECOTEC (125 Hp) featured Opel’s well-regarded Z18XE engine. This 1.8-liter (1796 cm³ or 109.6 cu. in.) naturally aspirated inline-four gasoline engine was designed with efficiency and robust performance in mind, typical of Opel’s ECOTEC series. Employing a Double Overhead Camshaft (DOHC) valvetrain with four valves per cylinder, the engine delivered a peak power output of 125 horsepower at 5600 rpm. Torque was rated at a respectable 125.39 lb.-ft. (170 Nm), achieved at a relatively accessible 3800 rpm, providing a strong mid-range pull that was well-suited for both city driving and cruising.
Power was sent to the front wheels via a smooth-shifting 5-speed manual transmission, a common and reliable setup for compact European cars of this era. This powertrain combination allowed the Tigra B TwinTop to accelerate from 0 to 60 mph in a brisk 8.9 seconds, with a 0 to 62 mph (100 km/h) sprint taking 9.4 seconds. Its top speed was rated at 126.76 mph (204 km/h), making it a capable performer on European highways.
Despite its sporty aspirations, the Opel Tigra B TwinTop 1.8i 16V ECOTEC (125 Hp) also offered commendable fuel economy for its class. The combined fuel consumption was an estimated 30.5 US mpg (7.7 l/100 km). In urban driving conditions, it achieved approximately 21.6 US mpg (10.9 l/100 km), while on the extra-urban cycle, it could reach an impressive 40.6 US mpg (5.8 l/100 km). This blend of performance and efficiency made the 1.8-liter Tigra an attractive option for those seeking a fun convertible without excessive running costs. Its front, transverse engine layout and front-wheel-drive architecture contributed to predictable handling and maximized interior space within its compact footprint.
Design and Features of the Tigra B TwinTop
The Opel Tigra B TwinTop was a standout in its segment primarily due to its sophisticated design and the engineering marvel of its retractable hardtop. Unlike its fixed-roof predecessor, the Tigra B adopted a sleek, modern coupe-cabriolet body style, characterized by its clean lines and short overhangs. Its compact dimensions, measuring 154.37 inches (3921 mm) in length, 66.34 inches (1685 mm) in width, and 53.7 inches (1364 mm) in height, made it particularly adept at navigating congested European city streets and parking in tight spaces. The relatively long wheelbase of 98.07 inches (2491 mm) for its size contributed to a stable ride.
The defining feature, the electro-hydraulic “TwinTop” roof, could retract in a matter of seconds, transforming the car from a secure coupe to an open-air roadster at the touch of a button. This system was not only convenient but also offered enhanced security and refinement compared to traditional soft-top convertibles. The innovative design also allowed for a variable trunk space: 8.83 cubic feet (250 liters) with the roof down, expanding to a generous 15.54 cubic feet (440 liters) with the roof up, which was a significant practicality advantage for a compact two-seater.
Inside, the Tigra B TwinTop offered a strictly two-seat configuration, focusing on a driver-centric cockpit. Features for its era included a well-appointed interior with comfortable seating, a functional dashboard layout, and standard amenities that typically included power windows, air conditioning, and a decent audio system. For safety, the vehicle was equipped with an Anti-lock Braking System (ABS) as standard, along with front ventilated disc brakes and rear disc brakes, providing reliable stopping power. The steering system utilized a rack and pinion setup, offering direct and responsive handling suitable for its sporty character. The vehicle rode on 185/60 R15 tires mounted on 6J x 15-inch wheel rims, providing a good balance of grip and ride comfort.
Legacy and Market Position
The Tigra B TwinTop occupied a unique position in the European automotive market, competing with models like the Peugeot 206 CC and Nissan Micra C+C. It successfully blended style, practicality, and affordability, appealing to a demographic seeking a fun and fashionable convertible experience. The retractable hardtop was a key differentiator, offering a more secure and refined alternative to traditional soft-top convertibles.
Technical Specifications
| Category | Specification |
| General Information | |
| Brand | Opel |
| Model | Tigra |
| Generation | Tigra B TwinTop |
| Type (Engine) | 1.8i 16V ECOTEC (125 Hp) |
| Production Start | October, 2004 |
| Production End | June, 2009 |
| Powertrain Architecture | Internal Combustion engine |
| Body Type | Coupe – Cabriolet |
| Seats | 2 |
| Doors | 2 |
| Performance Specs | |
| Fuel Consumption (Urban) | 10.9 l/100 km |
| Fuel Consumption (Extra Urban) | 5.8 l/100 km |
| Fuel Consumption (Combined) | 7.7 l/100 km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 60 mph | 8.9 sec |
| Acceleration 0 – 62 mph (0-100 km/h) | 9.4 sec |
| Maximum Speed | 204 km/h |
| Weight-to-Power Ratio | 10.1 kg/Hp |
| Weight-to-Torque Ratio | 7.4 kg/Nm |
| Engine Specs | |
| Power | 125 Hp @ 5600 rpm |
| Power per liter | 69.6 Hp/l |
| Torque | 170 Nm @ 3800 rpm |
| Engine Layout | Front, Transverse |
| Engine Model/Code | Z18XE |
| Engine Displacement | 1796 cm³ |
| Number of Cylinders | 4 |
| Engine Configuration | Inline |
| Cylinder Bore | 80.5 mm |
| Piston Stroke | 88.2 mm |
| Compression Ratio | 10.5:1 |
| Valves per Cylinder | 4 |
| Fuel Injection System | Multi-port manifold injection |
| Engine Aspiration | Naturally aspirated |
| Valvetrain | DOHC |
| Space, Volume, and Weights | |
| Kerb Weight | 1265 kg |
| Max. Weight | 1480 kg |
| Trunk (boot) Space – Minimum | 250 l |
| Trunk (boot) Space – Maximum | 440 l |
| Fuel Tank Capacity | 45 l |
| Dimensions | |
| Length | 3921 mm |
| Width | 1685 mm |
| Height | 1364 mm |
| Wheelbase | 2491 mm |
While it never achieved the iconic status of some classic roadsters, the Tigra B TwinTop played an important role in popularizing the compact retractable hardtop concept. It demonstrated that the enjoyment of open-top motoring, combined with the security and refinement of a fixed roof, could be made accessible to a broader audience without compromising on style or functionality. Today, the Opel Tigra B TwinTop is remembered as a charming and capable entry in the European compact convertible market, representing an era when automakers experimented with innovative roof designs to offer diverse and exciting options to consumers. Its legacy is one of accessible open-top fun, clever engineering, and a testament to Opel’s ability to adapt to evolving market trends in Europe.
