At the end of the ‘60s, Frua tried in vain to prolong his success with Glas by making a dozen proposals to BMW. BMW decided to make it on their own, but Frua’s influence can be seen in the “angry view” of the BMWs even today.
Pietro Frua had some success with German car-maker Glas in the 1960s, and after BMW’s take over of Glas, Frua built several speculative BMW-based prototypes, but none of them reached production. This design was recycled in 1979 for the Amectran Exar-1 electric car prototype but failed to enter production.
Source: BMW 3.0 Si Coupé by Frua (1975) - BMW Concepts and Prototypes. https://bmwconceptsarchive.wordpress.com/2015/01/08/bmw-3-0-si-coupe-by-frua-1975/
Images: www.conceptcars.it; www.pietro-frua.de