A aerodynamic Quattro Velo, cycle machine, stops at the junction Niederkirchnerstraße, where one of the sections of Berlin Wall stands, Germany Stock Photo - Alamy
Velomobiel.nl - Quatrevelo: intro
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2016·最像宇宙飞船的脚踏车蹬着这台自行车... 来自航空知识杂志王亚男- 微博
Quatrevelo – 3ike
erledigt - Quattro Velo + BJ. 2019, 656 km, mit E-Motor, neuwertig | Velomobil-Forum