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BMW Z21 Just 4/2. The motorbike-like concept car

The BMW Z21, also known as the BMW Just 4/2, stands as a testament to BMW’s relentless pursuit of innovation and boundary-pushing design. Unveiled to the world at the prestigious 1995 Tokyo Motor Show, this two-seater concept car captured the imagination of automotive enthusiasts and industry experts alike.

Crafted by the skilled hands of the same BMW engineering team responsible for the groundbreaking BMW Z18, a captivating blend of roadster and SUV, the Z21 ventured into uncharted territory. Its distinctive silhouette aimed to redefine the very essence of high-performance driving, with a rear-mounted engine positioned just behind the seats, delivering an exhilarating rear-wheel-drive experience.


Embodying the philosophy of “less is more,” the Z21 dared to challenge conventions with its minimalist design approach. Stripped of traditional elements such as a roof or windscreen, and boasting removable panels and doors, it embraced a raw and unfiltered driving experience. The interior, reminiscent of a no-frills go-kart, underscored its commitment to pure driving pleasure, albeit with the essential safety feature of airbags for occupants’ peace of mind.


Concept vehicle BMW Just 4/2 (Z21) – BMW Technik GmbH 1995 (03/2010)

Powered by a potent 100-horsepower four-cylinder engine sourced from the renowned BMW K1100 motorcycle series, the Z21 showcased remarkable agility and performance. With a featherweight construction tipping the scales at a mere 550 kilograms, it effortlessly sprinted from 0 to 100 km/h in a blistering six seconds, achieving a top speed nearing 190 km/h.

Beyond its mechanical prowess, the BMW Z21 transcended mere automotive engineering to embody a lifestyle statement. Accessorized with matching costumes and helmets, it invited enthusiasts to embrace the spirit of adventure and individuality on the open road.

The BMW Z21 was accessorised with a matching costume and helmets.

As automotive enthusiasts eagerly await the next evolution of BMW’s visionary concepts, the legacy of the Z21 serves as a timeless reminder of the brand’s unwavering commitment to pushing the boundaries of automotive innovation.