The transition from the BMW 3-series Convertible to the 4-series moniker might have raised a few eyebrows, but BMW has ensured the essence of its beloved convertible remains intact. For those in the market for a luxury convertible, the Bmw 435i offers a compelling blend of style and performance. While the nameplate may be new, the core philosophy and evolutionary design ensure that the BMW 435i Convertible is instantly recognizable and appealing to both long-time BMW enthusiasts and new admirers alike.
The BMW 4-series Convertible, including the 435i variant, has seen subtle but significant dimensional growth compared to its predecessor. Measuring 182.6 inches in length, it extends 0.7 inches longer, while its width expands by 1.7 inches to 71.9 inches. The wheelbase also sees an increase of 1.9 inches, now stretching to 110.6 inches. Interestingly, the height is reduced by 0.3 inches to 54.2 inches, contributing to a slightly sleeker profile. BMW maintains its commitment to balanced weight distribution, preserving the 48 percent front and 52 percent rear distribution, a hallmark of BMW’s renowned driving dynamics.
BMW boasts about weight reduction in the open-top 4-series, claiming “up to 44 lbs lighter.” However, this claim doesn’t entirely hold true for the BMW 435i Convertible. Our test drive revealed a substantial curb weight of 4,095 lbs. This figure is nearly 100 lbs heavier than the previous generation and a significant 400 lbs more than the fixed-roof BMW 4-series Coupe. The robust and intricate hardtop roof mechanism, carried over from the 3-series with minimal changes, contributes significantly to this added weight. Despite considering a fabric top, similar to those found in the Audi A5 and Mercedes-Benz E-Class Cabriolet, BMW opted for the familiar hardtop, influenced by conservative design principles. A notable improvement is the roof’s operability at speeds up to 11 mph, a practical feature preventing traffic obstructions if caught at a traffic light while operating the top.
Engine choices for the BMW 4-series Convertible include two turbocharged options. The 428i is powered by a 240-horsepower N20 four-cylinder engine, while the focus of our review, the BMW 435i, boasts a more potent 300-horsepower N55 straight-six engine. The naturally aspirated 3.0-liter straight-six engine, a beloved feature of the former 328i, is no longer available. Furthermore, the six-speed manual transmission has also been discontinued. The 4-series Convertible is exclusively offered with an eight-speed automatic transmission, an upgrade from the previous six-speed automatic.
The BMW 435i‘s direct-injected, single-turbo N55 engine delivers responsiveness comparable to the twin-turbocharged N54 engine previously used in the 335i. It also offers enhanced efficiency, with real-world gains of 10 percent or more observed in other BMW models equipped with this engine. However, the N55 engine’s sound profile doesn’t quite match the auditory appeal of the N54, let alone BMW’s revered naturally aspirated six-cylinder engines. The engine note possesses a sharper tone, arguably diminishing BMW’s unique sonic identity in this segment. Moreover, the considerable weight of the 435i Convertible somewhat masks its outright speed. While official figures indicate a zero to 60 mph time of 5.4 seconds and a top speed of 130 or 155 mph (depending on tire selection), the subjective sensation of speed doesn’t fully align with these impressive numbers, especially when compared to the lighter BMW 335i sedan. Nevertheless, the BMW 435i Convertible remains reasonably brisk in urban environments and on highways, thanks to ample low-end torque and the responsive eight-speed automatic transmission. However, it might not be the ideal choice for those seeking to challenge a Porsche Boxster or even a well-driven older 3-series in terms of outright sportiness.
The BMW 435i Convertible truly excels as a comfortable boulevard cruiser, particularly when equipped with the Luxury package, as was our test vehicle. Predictably, the open-top design introduces more body flex compared to the fixed-roof 435i Coupe. The steering system, while reasonably precise, lacks the beautifully balanced weight and feedback characteristic of older hydraulic systems. Therefore, adopting a relaxed driving style, lowering the top, and enjoying the comfortable seats and well-appointed interior is where the BMW 435i Convertible shines. We particularly appreciated the ash grain wood trim with metal inlays and the functional instrumentation. The front seats offer a firm yet comfortable experience, while the rear seats provide adequate space for longer journeys.
However, the BMW 435i Convertible is not without its minor shortcomings. Certain BMW quirks, such as the somewhat cumbersome gear selector and the necessity to acknowledge input errors via the iDrive controller, can be slightly frustrating. Accidentally selecting the wrong gear during maneuvers like three-point turns and then encountering an error screen obstructing the rearview camera is a particularly irksome experience. Furthermore, a smoother engagement of the “Park” mode when reversing with an open door or unbuckled seatbelt would be a welcome refinement. While the overall material quality is generally high, the hard plastic section below the climate controls hints at cost-saving measures.
The BMW 435i Convertible starts at a base price of $54,900, but it’s likely that most buyers will opt for additional packages beyond the basic trim. The Luxury or Sport Packages add $1,400 to the price, while the M Sport package commands $2,600. Competition in the luxury convertible segment is robust, with strong contenders like the Audi A5 and Mercedes-Benz E-Class Cabriolet, each offering distinct characteristics. However, if a folding hard top is a priority, the BMW 4-series Convertible, especially the 435i, emerges as the most appealing choice, surpassing the aging Infiniti Q60 and Lexus IS Convertible in overall desirability. With its refined aesthetics and significantly improved efficiency, the latest BMW Convertible is poised to satisfy its discerning clientele.
In conclusion, the BMW 435i Convertible offers a compelling package for those seeking a luxurious and stylish convertible. It blends comfortable cruising with respectable performance, although it leans more towards grand touring than outright sports car thrills. While it carries over some familiar BMW traits, both positive and negative, the 435i Convertible represents a solid evolution in the 4-series lineup and remains a strong contender in its competitive segment.
