The BMW 650i, part of the E63 generation (and its 2007 facelift), represented the performance pinnacle of the 6 Series coupe and convertible lineup. Produced from 2007 to 2010, this model combined grand touring comfort with a potent V8 engine. It occupied the top tier of the 6 Series range, positioned above the 630i and 645i, offering a significant increase in power and a more luxurious experience. The E63 6 Series, as a whole, aimed to revive the classic BMW coupe tradition, blending sporting dynamics with sophisticated styling and technology.
Technical Specifications
| Brand | BMW |
| Model | 6 Series |
| Generation | 6 Series (E63, facelift 2007) |
| Type (Engine) | 650i (367 Hp) |
| Start of production | 2007 |
| End of production | 2010 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (economy) – urban | 17.8 l/100 km (13.2 US mpg, 15.9 UK mpg, 5.6 km/l) |
| Fuel consumption (economy) – extra urban | 8.1 l/100 km (29 US mpg, 34.9 UK mpg, 12.3 km/l) |
| Fuel consumption (economy) – combined | 11.7 l/100 km (20.1 US mpg, 24.1 UK mpg, 8.5 km/l) |
| CO2 emissions | 279 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 5.1 sec |
| Acceleration 0 – 62 mph | 5.1 sec |
| Acceleration 0 – 60 mph | 4.8 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 4 |
| Weight-to-power ratio | 4.5 kg/Hp, 222.4 Hp/tonne |
| Weight-to-torque ratio | 3.4 kg/Nm, 297 Nm/tonne |
| Power | 367 Hp @ 6300 rpm |
| Power per litre | 76.5 Hp/l |
| Torque | 490 Nm @ 3400 rpm (361.41 lb.-ft. @ 3400 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | N62B48B |
| Engine displacement | 4799 cm3 (292.85 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 93 mm (3.66 in.) |
| Piston Stroke | 88.3 mm (3.48 in.) |
| Compression ratio | 10.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Engine oil capacity | 8 l (8.45 US qt | 7.04 UK qt) |
| Coolant | 13.8 l (14.58 US qt | 12.14 UK qt) |
| Kerb Weight | 1650 kg (3637.63 lbs.) |
| Max. weight | 2100 kg (4629.71 lbs.) |
| Max load | 450 kg (992.08 lbs.) |
| Trunk (boot) space – minimum | 450 l (15.89 cu. ft.) |
| Fuel tank capacity | 70 l (18.49 US gal | 15.4 UK gal) |
| Length | 4820 mm (189.76 in.) |
| Width | 1855 mm (73.03 in.) |
| Height | 1374 mm (54.09 in.) |
| Wheelbase | 2780 mm (109.45 in.) |
| Front track | 1558 mm (61.34 in.) |
| Rear (Back) track | 1596 mm (62.83 in.) |
| Drag coefficient (Cd) | 0.30 |
| Minimum turning circle | 11.4 m (37.4 ft.) |
| Drivetrain Architecture | Rear wheel drive |
| Drive wheel | Rear wheel drive |
| Number of gears and type of gearbox | 6 gears, manual transmission |
| Front suspension | Double wishbone |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | 245/45 R18 96W RSC |
| Wheel rims size | 8J x 18 |
Powertrain & Engine Architecture
The heart of the 650i was the N62B48B, a 4.8-liter naturally aspirated V8 engine. This engine was a significant upgrade from the earlier N62 engines, featuring individual throttle bodies for improved throttle response and a revised engine management system. The N62 featured Double-VANOS (variable valve timing on both intake and exhaust camshafts) and a magnesium alloy engine block to reduce weight. Fuel delivery was handled by a multi-port fuel injection system. The engine produced 367 horsepower at 6300 rpm and 490 Nm (361 lb-ft) of torque at 3400 rpm. The standard transmission was a 6-speed manual, though a 6-speed automatic transmission was also available, offering smooth shifts but slightly impacting acceleration times.
Driving Characteristics
The 650i delivered a refined yet engaging driving experience. The naturally aspirated V8 provided a linear power delivery, with strong torque available throughout the rev range. While not as overtly aggressive as turbocharged engines, the 650i offered ample power for effortless cruising and spirited driving. The rear-wheel-drive configuration and well-tuned suspension contributed to balanced handling. The manual transmission allowed for precise control, while the automatic provided convenience. Compared to the 630i, the 650i offered a substantial performance advantage, while the 645i, with its earlier V8, was largely superseded in terms of refinement and power output.
Equipment & Trim Levels
The 650i came standard with a comprehensive list of features, including leather upholstery, power-adjustable seats with memory function, a premium sound system, automatic climate control, and xenon headlights. Optional extras included active steering, adaptive suspension, a head-up display, and various interior trim options. The interior design emphasized luxury and comfort, with high-quality materials and a driver-focused layout. Trim levels were relatively simple, with options primarily focused on individual features rather than distinct packages.
Chassis & Braking
The E63 6 Series featured a robust chassis with a double wishbone front suspension and an independent multi-link rear suspension. This setup provided a comfortable ride while maintaining excellent handling characteristics. Ventilated disc brakes were standard on all four wheels, providing ample stopping power. ABS (Anti-lock Braking System) was also standard. The suspension was tuned to balance comfort and performance, offering a more compliant ride than some of its sportier rivals.
Market Reception & Comparison
The 650i was generally well-received by automotive critics, who praised its powerful engine, luxurious interior, and refined driving experience. However, some criticized its relatively high price and complex electronics. Compared to competitors like the Mercedes-Benz CL-Class and Porsche 911, the 650i offered a unique blend of grand touring comfort and sporting dynamics. Fuel economy was a concern, with combined fuel consumption averaging around 20 mpg. Reliability was also a point of discussion, with some owners reporting issues with the cooling system and electronic components.
Legacy
The E63 650i remains a desirable grand tourer in the used car market. The N62 V8 engine, while known for potential cooling system issues (often related to the plastic thermostat housing), is generally considered robust when properly maintained. The car’s sophisticated styling and luxurious interior continue to appeal to enthusiasts. Values have remained relatively stable, reflecting the car’s enduring appeal and the increasing rarity of well-maintained examples. The 650i represents a high point in BMW’s coupe heritage, offering a compelling combination of performance, luxury, and style.
