The David Brown Speedback GT 5.0 V8 Automatic, produced between 2014 and 2017, represents a unique offering in the grand touring coupe segment. Designed and built by David Brown Automotive, a British manufacturer, the Speedback GT aimed to evoke the spirit of classic British shooting brake designs while incorporating modern performance and luxury. This particular variant, powered by a 5.0-liter twin-turbocharged V8 engine paired with a six-speed automatic transmission, sat at the top of the Speedback GT lineup, offering the highest level of performance and refinement. The car was intended to appeal to buyers seeking a distinctive, hand-built alternative to mainstream luxury coupes.
Technical Specifications
| Brand | David Brown |
| Model | Speedback GT |
| Generation | Speedback GT |
| Type (Engine) | 5.0 V8 (510 Hp) Automatic |
| Start of production | 2014 |
| End of production | 2017 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 2-4 |
| Doors | 2 |
| Fuel consumption (economy) – urban | 18.9 l/100 km (12.4 US mpg, 14.9 UK mpg, 5.3 km/l) |
| Fuel consumption (economy) – extra urban | 8.6 l/100 km (27.4 US mpg, 32.8 UK mpg, 11.6 km/l) |
| Fuel consumption (economy) – combined | 12.3 l/100 km (19.1 US mpg, 23 UK mpg, 8.1 km/l) |
| CO2 emissions | 292 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 4.8 sec |
| Acceleration 0 – 62 mph | 4.8 sec |
| Acceleration 0 – 60 mph | 4.6 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Weight-to-power ratio | 3.8 kg/Hp, 265.6 Hp/tonne |
| Weight-to-torque ratio | 3.1 kg/Nm, 325.5 Nm/tonne |
| Power | 510 Hp @ 6000-6500 rpm |
| Power per litre | 102 Hp/l |
| Torque | 625 Nm @ 2500-5000 rpm (460.98 lb.-ft. @ 2500-5000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine displacement | 5000 cm3 (305.12 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Compression ratio | 9.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Twin-Turbo, Intercooler |
| Engine oil capacity | 7.25 l (7.66 US qt | 6.38 UK qt) |
| Kerb Weight | 1920 kg (4232.88 lbs.) |
| Max. weight | 2129 kg (4693.64 lbs.) |
| Max load | 209 kg (460.77 lbs.) |
| Trunk (boot) space – minimum | 243 l (8.58 cu. ft.) |
| Trunk (boot) space – maximum | 502 l (17.73 cu. ft.) |
| Fuel tank capacity | 71 l (18.76 US gal | 15.62 UK gal) |
| Length | 4760 mm (187.4 in.) |
| Width | 1860 mm (73.23 in.) |
| Width including mirrors | 2100 mm (82.68 in.) |
| Height | 1350 mm (53.15 in.) |
| Wheelbase | 2750 mm (108.27 in.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels of the vehicle. |
| Drive wheel | Rear wheel drive |
| Number of gears and type of gearbox | 6 gears, automatic transmission |
| Assisting systems | ABS (Anti-lock braking system) |
Powertrain & Engine Architecture
At the heart of the Speedback GT 5.0 V8 lies a 5.0-liter, longitudinally-mounted V8 engine. This engine, sourced from a specialist supplier, is equipped with twin turbochargers and direct fuel injection. The twin-turbo setup is crucial for delivering both substantial power and a broad torque curve. The engine produces 510 horsepower at 6000-6500 rpm and a robust 625 Nm (460.98 lb-ft) of torque between 2500 and 5000 rpm. The 9.5:1 compression ratio strikes a balance between performance and reliability. The engine’s oil capacity is 7.25 liters, requiring a high-quality lubricant meeting specific manufacturer specifications. The six-speed automatic transmission was chosen for its blend of smooth operation and responsiveness, although it wasn’t the most modern unit available at the time. It was selected to provide a comfortable driving experience befitting the car’s grand touring intentions.
Driving Characteristics
The Speedback GT 5.0 V8 Automatic delivers impressive performance. The 0-60 mph sprint is dispatched in approximately 4.6 seconds, and the car boasts a top speed of 155 mph (250 km/h). The twin-turbochargers minimize turbo lag, providing strong acceleration throughout the rev range. The automatic transmission, while not offering the engagement of a manual, provides smooth and relatively quick shifts. Compared to a hypothetical manual version, the automatic prioritizes ease of use over outright driver involvement. The car’s weight of around 1920 kg (4232.88 lbs) is noticeable, but the powerful engine mitigates this, providing ample power for overtaking and spirited driving. The rear-wheel-drive configuration contributes to a balanced feel, although traction control is essential to manage the power on slippery surfaces.
Equipment & Trim Levels
The Speedback GT 5.0 V8 Automatic was a relatively well-equipped vehicle, reflecting its premium price point. Standard features included leather upholstery, climate control, a high-end audio system, and power-adjustable seats. The interior was hand-trimmed and offered a high degree of customization, with buyers able to choose from a wide range of leather colors and wood veneers. Optional extras included bespoke interior detailing, upgraded audio systems, and various exterior styling enhancements. The car was designed to be a luxurious and comfortable grand tourer, with a focus on craftsmanship and personalization.
Chassis & Braking
The Speedback GT utilized a steel chassis and independent suspension all around. The front suspension featured MacPherson struts, while the rear employed a multi-link setup. The braking system consisted of ventilated disc brakes at all four corners, coupled with an Anti-lock Braking System (ABS). Given the car’s weight and performance, the brakes were adequately sized to provide strong stopping power. Stabilizer bars were fitted front and rear to reduce body roll during cornering. The suspension tuning prioritized comfort and stability over outright sportiness, making the car a pleasant companion on long journeys.
Market Reception & Comparison
The David Brown Speedback GT 5.0 V8 Automatic received generally positive reviews from automotive journalists. Critics praised its distinctive styling, luxurious interior, and strong performance. However, the car’s high price tag – significantly more than many mainstream luxury coupes – limited its appeal. Fuel economy, at 12.3 l/100 km (19.1 US mpg), was also a concern for some. Compared to rivals like the Aston Martin V8 Vantage, the Speedback GT offered a more unique and personalized experience, but lacked the brand recognition and established pedigree of its competitor. The automatic transmission was sometimes criticized for not being as responsive as more modern units.
Legacy
The David Brown Speedback GT 5.0 V8 Automatic represents a niche offering in the automotive landscape. Production was limited to a relatively small number of units, making it a rare and collectible vehicle. The 5.0-liter V8 engine, while not known for exceptional long-term reliability, is generally robust when properly maintained. The automatic transmission, while not cutting-edge, is known to be durable. On the used car market, the Speedback GT commands a premium price, reflecting its exclusivity and unique character. It remains a desirable option for enthusiasts seeking a distinctive and hand-built grand tourer.
