BMW 630i (E63) review: the shape without the six-figure engine bill
3.3/5MotorsSouq Editorial Team
The 630i is honest about what it is: a comfortable, good-looking coupe with a mid-range engine that never quite matches the drama of its shape. That is not a criticism so much as a buying instruction — pay 630i money for the styling and daily-usability, and go straight to a 645Ci or 650i if outright performance is the point. Whichever engine you choose, budget for the E63's electronics (comfort access, iDrive-adjacent modules) showing their age.
Pros
- Distinctive Bangle-era shape that has aged into something more appreciated than it was at launch
- M54 straight-six is smooth, well-understood and generally reliable for its age
- Priced well below the 645Ci/650i for essentially the same silhouette and cabin
- Comfort-tuned chassis makes it a relaxed long-distance cruiser
Cons
- The 3.0-litre six never matches the drama of the coupe's shape or its badge
- Known electrical fragility at this age: window regulators, comfort access, control units
- Fewer Bahrain specialists know this specific chassis well compared to E39/E46
- Rear seats and boot are tight even by coupe standards
When BMW revived the 6 Series in 2003 after a 14-year absence, the styling by Chris Bangle was as divisive as the E60 5 Series that shared its underpinnings — a long bonnet, a controversial boot line, and proportions that split opinion in showrooms across the Gulf. Two decades on, the shape has aged into something more distinctive than the anonymous coupes that came after it, and the 630i is the way to have it without the V8's running costs.
The catch is the engine underneath. The 630i's M54B30 straight-six is the same unit found in the contemporary 330i and 530i — smooth, reliable, and utterly unremarkable for a car with this much visual drama. 258 hp is enough to make the coupe feel adequately quick, not genuinely fast, and buyers who cross-shopped a 645Ci at the time frequently traded up for exactly that reason.
What that means for a used buyer
On today's Bahrain used market, that engine mismatch works in a value-focused buyer's favour: 630i prices sit meaningfully below 645Ci and 650i examples, while sharing the same distinctive shape, the same well-appointed cabin, and largely the same comfort-oriented chassis tune. If your priority is looking the part on the Corniche rather than outrunning anything, the 630i does the job for considerably less money and lower running costs than its V8 siblings.
What it does not escape is the E63's known electrical fragility at this age — window regulators, the comfort access system, and early iDrive-adjacent control units are all known to develop faults, and specialist familiarity with this specific chassis is thinner in Bahrain than with the far more numerous E39 and E46 platforms.
Who should buy one
Buy it if the 6 Series silhouette is the point and you are comfortable with mid-range performance, and if you can find an independent workshop in Bahrain that has actually worked on this specific chassis before. It is not the 6 Series to buy if you want the engine to match the drama of the shape.