Gigliato Aerosa, Japanese supercar by Lamborghini never born - World Motors. Prototype #1 built in 1995 used a 220 hp V6 engine designed by Yamaha for Ford (the same one used in the first Taurus SHO).
Its construction took place in Dusseldorf, Germany and ambitious plans were even announced for Le Mans starting in 1998. But the project stalled, essentially due to a lack of funds and the aforementioned difficulties in obtaining permits to manufacture it in Japan.