IsoBMW

IsoBMW is a fictional automotive project imagined as a collaboration between the Italian automaker Iso and the German manufacturer BMW. In speculative fiction and automotive forums, IsoBMW is described as a lightweight, mid-engine sports car designed to merge Iso’s heritage of minimal weight and simple construction with BMW’s engineering expertise and powertrains.

Design concepts envision a compact two-seat or 2+2 layout with a mid-mounted engine, a cage-style chassis, and a focus on lightness and agility. The powertrain is sometimes described as BMW-sourced inline-six or turbocharged engines, paired with a rear transaxle or all-wheel drive in some variants. Materials would emphasize aluminum or composite components to achieve a low curb weight, while aerodynamics would aim for a low coefficient of drag and good downforce for handling stability.

Because IsoBMW exists only in speculative discourse, no official designs, prototypes, or production plans were announced. The concept commonly appears in fan-fiction, alternative-history timelines, and hypothetical scenario discussions about brand collaboration. It is cited as an example of how a small, lightweight brand could partner with a major manufacturer to deliver a performance-focused car with modern technology.

See also: Iso Rivolta, BMW, automotive joint ventures, lightweight sports cars.