
Texas-tuner creates a one-off gullwing prototype based on the C111. The Ciento Once comes with an M120 V12 engine from Mercedes providing an output of 408 hp (304 kW / 414 PS).
Source:
worldcarfans Tuning
https://www.tuning-links.com/news_985_Ciento+Once+by+GWA+-+Mercedes-Benz+C111+experimental+vehicle+revival.html