V8 engines powering their main rivals, the new Nissan R381, and the Lola T70s fielded by Taki Racing Organisation. The added weight from testing also meant that the car was much heavier than the two-litre sports prototypes, including Taki Racing's Porsche 910 and 906, and the Nissan R380-IIIs. Fukuzawa was the fastest Toyota in time trials, qualifying sixth with a lap of 1:56.21. His time, however, was two seconds slower than the 415S' fastest time from preseason testing, and over five seconds slower than the fastest time set by Kunimitsu Takahashi in his R381. In the race, Fushida was running sixth when he suffered a puncture, while Otsubo was suffering from a lack of oil pressure. After half-distance, Fukuzawa was running in second place, and Hosoya, who started tenth, was running fourth. However, Hosoya retired on Lap 44 from an overheating issue, and Fukuzawa suffered suspension and driveshaft failures on Lap 59, completing enough laps to be classified fourteenth. Fushida and Otsubo recovered from their early troubles to finish the race. Otsubo finished eighth, five laps down, and Fushida finished ninth, six laps down. Although the 7s finished, they were well behind their main competitor, Nissan, who had not only two new R381s, but also three older R380-IIIs finish ahead of them in the top six, led by the R381 of race winner Moto Kitano. Taki Racing's two-litre Porsches, led by runner-up Tetsu Ikuzawa in second, also finished ahead of Otsubo and Fushida. The 415S continued racing in endurance races and other domestic events. Hosoya scored the 415S' first competition victory on 30 June at the All-Japan Suzuka Auto Racing Tournament, leading a sweep of the top four positions with Otsubo second, Mitsumasa Kanie third, and Fushida fourth. Fushida and Kanie won the second annual Fuji 1000km on 21 July, and two weeks later on 4 August, Hosoya and Otsubo won the Suzuka 12 Hour Race, in a 1-2 finish ahead of Fushida & Kanie. Fushida then won the second All-Japan Suzuka Auto Racing Tournament on 25 August. On 23 September, Fukuzawa and Fushida took a dominant victory in the third annual 1000km Suzuka. 1968 World Challenge Cup Fuji 200 Mile Race An invitational race was held at Fuji on 23 November, the inaugural World Challenge Cup Fuji 200 Mile Race, which became known colloquially as the "Japan Can-Am" race. Toyota entered five 415S, with newcomer Minoru Kawai (number 35)