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BMW 6 Series Convertible (E64) 645Ci (333 Hp) Steptronic
Overall Rating
BMW 6 Series:
The BMW 6 Series is a range of grand tourers produced by BMW since 1976. It is the successor to the E9 Coupé and is currently in its fourth generation.
The first generation BMW E24 6 Series was available solely as a two-door coupé and produced from 1976 to 1989, when it was supplanted by the larger BMW 8 Series. When the 6 Series nameplate was revived in 2004 for the second generation, the BMW E63/E64 6 Series, the coupé was joined by a convertible body style. The third generation F06/F12/F13 6 Series debuted in 2011 as a coupé and convertible, and a sedan variant known as the "Gran Coupé" in 2012. When the F06/F12/F13 6 Series ended production, the "Gran Coupé"/coupé/convertible models have been shifted into the more upmarket BMW 8 Series nameplate. The fourth generation 6 Series, the G32 6 Series, debuted in mid-2017 and is offered only as a fastback body style to complement the BMW 5 Series sedan/wagon....(Read more on Wikipedia)
Convertible (E64) Overview:
BMW 6 Series (Convertible (E64)). With 450 Nm of torque, it offers ample pulling power. With a weight of 1820 kg, it falls in the mid‑range. Rear‑wheel drive offers dynamic handling and sporty feedback. Acceleration is good (0–100 km/h in 6.2 s). The top speed reaches 250 km/h. A convertible car with a retractable roof, offering open-air driving experiences. Seating for 4 makes it ideal for daily use.
645Ci (333 Hp) Steptronic Verdict:
Performance Verdict
Offers strong V8 performance with smooth automatic shifts, providing effortless acceleration for grand touring.
Fuel Economy
Decent fuel economy for a large V8, though still a thirsty engine in urban conditions.
Pros and Cons:
Pros:
- • Elegant and timeless design, especially with the top down.
- • Powerful and smooth engine options (V8s and I6).
- • Luxurious and comfortable interior for grand touring.
- • Engaging driving dynamics for a large convertible.
- • High-quality materials and build.
Cons:
- • Rear seats are very cramped, more 2+2 than true four-seater.
- • Infotainment system (iDrive) can feel dated by modern standards.
- • Potential for costly maintenance, especially with V8 engine issues (e.g., N62 valve stem seals).
- • Fuel consumption can be high, particularly with the V8 engines.
- • Relatively heavy, impacting agility compared to smaller sports cars.
Specifications:
Specifications are compared to those of the previous generation(E24, facelift 1987: 1987 - 1989).
| General: | |
|---|---|
| Brand: | BMW |
| Model: | 6 Series |
| Generation: | Convertible (E64) |
| Modification (Engine): | 645Ci (333 Hp) Steptronic |
| Start of production: | 2003 |
| End of production: | 2005 |
| Powertrain Architecture: | Internal Combustion engine |
| Body type: | Cabriolet |
| Seats: | 4 |
| Doors: | 2 |
| Engine: | |
|---|---|
| Power: | 333 Hp @ 6100 rpm. Same horsepower |
| Power per litre: | 75.7 Hp/l [5mm more] |
| Torque: | 450 Nm @ 3600 rpm. |
| Engine Model/Code: | N62B44 More details about the engine N62B44 |
| Engine displacement: | 4398 |
| Number of cylinders: | 8 |
| Engine configuration: | V-engine |
| Number of valves per cylinder: | 4 |
| Fuel injection system: | Multi-port manifold injection |
| Engine aspiration: | Naturally aspirated engine |
| Valvetrain: | DOHC |
| Engine oil capacity: | 8 l |
| Coolant: | 14.2 l |
| Engine layout: | Front, Longitudinal |
| Cylinder Bore: | 92 mm |
| Piston Stroke: | 82.7 mm |
| Compression ratio: | 10:1 |
| Performance: | |
|---|---|
| Fuel Type: | Petrol (Gasoline) |
| Fuel consumption (economy) - urban: | 16.8 l/100 km |
| Fuel consumption (economy) - extra urban: | 8.5 l/100 km |
| Fuel consumption (economy) - combined: | 11.5 l/100 km |
| Emission standard: | Euro 4 |
| Acceleration 0 - 100 km/h: | 6.2 sec |
| Acceleration 0 - 62 mph: | 6.2 sec |
| Maximum speed: | 250 km/h |
| Weight-to-power ratio: | 5.5 kg/Hp, 183 Hp/tonne |
| Weight-to-torque ratio: | 4 kg/Nm, 247.3 Nm/tonne |
| Acceleration 0 - 60 mph: | 5.9 sec |
| Space: | |
|---|---|
| Kerb Weight: | 1820 |
| Max. weight: | 2220 |
| Max load: | 400 |
| Trunk (boot) space - maximum: | 350 l |
| Trunk (boot) space - minimum: | 300 l |
| Fuel tank capacity: | 70 l |
| Size: | |
|---|---|
| Length: | 4820 mm [5mm more] |
| Width: | 1855 mm [130mm more] |
| Height: | 1373 mm [8mm more] |
| Wheelbase: | 2780 mm [155mm more] |
| Front track: | 1558 mm |
| Rear (Back) track: | 1592 mm |
| Minimum turning circle (turning diameter): | 11.4 m [above average] |
| Powertrain: | |
|---|---|
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels of the vehicle. |
| Drive wheel | Rear wheel drive |
| Number of gears | 6 |
| Transmission type | Automatic |
| Front brakes | Ventilated discs [Best for performance and cooling.] |
| Rear brakes | Disc [above average] |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | 245/45 R18 |
| Wheel rims size | 8J x 18 |
| Front suspension | Coil spring |
| Rear suspension | Coil spring |
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