1991 October 08 - Naok Hattori test Coloni C4 @ Magione

1990 japanese F3 champion, Naoki Hattori had his first F1 test with Scuderia Coloni on October 08, 1991, driving the C4-Ford V8 at Magione as training for his F1 debut at the ’91 Japanese GP (October 18 to 20). He will fail to pre-qualify at this event as well at the following one, the Australian GP. Hattori will never drove an F1 in a championship event, but will test the unraced Dome F105 at Suzuka on October 30 & 31, 1996 ()