BMW 640i
The BMW 640i is the entry-performance F12/F13 6 Series — a 3.0-litre turbocharged inline-six grand tourer coupe that balances long-distance comfort with the engaging dynamics of a genuine driver's car in an elegantly proportioned body.
Overview
The F12/F13 6 Series returned in 2011 as BMW's definitive grand tourer proposition — a wide, low coupe body housing the brand's proven N55 3.0-litre turbocharged inline-six. Where the E63 generation before it had polarised opinion with its Bangle-influenced design, the F12 arrived with a more universally admired form that drew on the 6 Series' original grand tourer heritage. The 640i sits as the entry engine variant, producing 315 hp and 450 Nm of torque through an 8-speed automatic gearbox, delivering effortless long-distance pace.
The 640i's gran tourer positioning distinguishes it from the more performance-focused M6. Rather than chasing outright lap times, the 640i prioritises the quality of the journey — a supple but controlled ride, cabin refinement that suppresses road and wind noise effectively, and an inline-six character that offers real engagement when the driver demands it. Available in coupe, convertible, and Gran Coupe four-door forms, the 640i provides flexibility for buyers with differing body style preferences without compromising the core grand tourer experience.
In Azerbaijan's premium used car market, the F12 640i represents compelling value. A grand tourer of this calibre, blending genuine performance, striking styling, and BMW engineering quality, is available at used prices that would have seemed impossible when new. For buyers in Baku seeking a distinct alternative to the ubiquitous sport sedan, the 640i offers a genuinely different experience — wider, lower, more theatrical, but no less refined for everyday use.
640i in Pictures
Exterior design, cabin layout, and real-world use reference images. Broken links gracefully fall back to text tiles.
Key Specifications
- Engine: N55B30 3.0L turbocharged inline-six
- Power: 315 hp / 232 kW
- Torque: 450 Nm
- 0–100 km/h: 5.4 sec (coupe)
- Transmission: 8-speed automatic
- Drivetrain: Rear-wheel drive (RWD)
- Available body styles: Coupe, Convertible, Gran Coupe (4-door)
- Kerb weight: approximately 1,740 kg (coupe)
Variant Comparison
| Trim | Engine | Power | 0–100 km/h | Best For |
|---|---|---|---|---|
| 640i Coupe | 3.0L N55 Turbo I6 | 315 hp | 5.4 sec | GT coupe for discerning drivers |
| 640i Convertible | 3.0L N55 Turbo I6 | 315 hp | 5.6 sec | Open-top grand touring |
| 640i Gran Coupe | 3.0L N55 Turbo I6 | 315 hp | 5.5 sec | 4-door GT practicality |
Competitor Snapshot
Competitor choice in Azerbaijan should account not only for headline specs, but for service ecosystem, parts availability, and ownership confidence over your actual routes.
| Model | Core Strength | Main Compromise (Local Context) |
|---|---|---|
| Mercedes E400 Coupe | V6 refinement, strong brand presence, well-appointed cabin | Less dramatic styling, slightly less driver engagement than BMW |
| Audi A7 | quattro AWD available, fastback practicality, strong interior quality | More executive than GT in character, less rear visibility |
| Jaguar XK | V8 character, distinctive British GT identity, aluminium body | Older platform, fewer dealer options in Azerbaijan |
| Lexus LC (gen overlap) | Outstanding reliability, V8 option, distinctive styling | Different market positioning, fewer used examples available |
Repair & Service in Azerbaijan
BMW has an established service presence in Baku through authorised dealerships and independent specialists familiar with the brand. Parts supply for common maintenance items is generally reliable, though specialist components for performance models and older generations may require additional lead time.
- N55 walnut blasting of intake valves is recommended at 80,000 km intervals to remove carbon build-up from direct injection
- Oil filter housing gasket is a known minor leak point on N55 — inspect and replace proactively if seeping
- Thermostat and coolant system inspection is advisable on high-mileage examples — N55 cooling is generally reliable but age-sensitive
- Electric soft-top maintenance on convertible variants: annual inspection of hydraulic system, roof seals, and drainage channels is essential
- 6 Series electronics longevity is generally strong but all modules should be fault-scanned before purchase
Ownership Cost Estimator (Azerbaijan)
Adjust these values for your driving profile. All figures are estimates for planning purposes only.
- Estimated annual fuel consumption: 1425 L
- Estimated annual fuel cost: $997
- Total annual ownership estimate: $5898
- Average monthly ownership estimate: $491
- N55 is a more refined and straightforward maintenance proposition than the earlier N54 twin-turbo — service complexity is moderate
- Electric soft-top mechanism on convertible variants requires periodic lubrication and seal inspection to maintain weather tightness
- Gran Coupe trunk seals and rear door weather sealing should be inspected on higher-mileage examples
- Fuel consumption of 9–11 L/100km in mixed Baku driving is realistic — motorway cruising at steady speed is notably more efficient
Used 640i Buying Checklist
Inspect each point thoroughly before committing to a purchase. Request service records, VIN validation, and any recall completion documentation.
- Electric roof function (convertible) — full open/close cycle, check for seal integrity and drain channel blockage
- Full service stamp history — BMW dealer or authorised specialist records preferred
- Full electronics fault scan — inspect all modules including iDrive, roof, and chassis systems
- N55 oil leaks — check oil filter housing and valve cover gasket areas
- Body panel alignment — inspect all panel gaps and shut lines for accident repair evidence
- Cooling system — verify thermostat function and coolant condition
640i FAQ — Azerbaijan Buyers
Is the 640i reliable for long-distance use?
Yes — the N55-powered 640i is among the more reliable modern BMW grand tourers. The N55 addresses several of the N54's known weak points and is a robust, well-understood engine. With documented service history including oil service and minor items, the 640i is an excellent long-distance proposition.
Coupe, Convertible, or Gran Coupe — which should I choose?
The coupe offers the purest GT aesthetic and the lightest weight. The convertible adds open-top appeal but requires careful roof mechanism inspection at purchase. The Gran Coupe provides 4-door practicality with minimal styling compromise — it is the most practical daily choice for buyers with occasional rear passengers.
How does the 640i compare to the 650i in practice?
The 640i's N55 inline-six is more economical and marginally more refined at low speeds. The 650i's V8 adds a more dramatic power character and noticeably stronger mid-range. For most grand touring use the 640i is entirely sufficient — the 650i is the choice for buyers who specifically want V8 presence.
Should You Buy the BMW 640i?
The BMW 640i is one of the most rewarding used car purchases available in Azerbaijan's premium segment. As a grand tourer it delivers everything the 6 Series was designed for — elegant proportions, long-distance comfort, and an engaging inline-six that rewards the driver. The N55 engine is manageable to maintain, the 8-speed gearbox is refined and efficient, and the available body styles offer genuine choice. Buyers should prioritise clean service history, fault-free electronics, and — on convertibles — confirmed roof mechanism health. A well-chosen 640i offers a distinctly different experience from the ubiquitous sport sedan at comparable used pricing.
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