Honda Civic Type R driven by Yamauchi at the
25 Hours of Thunderhill in 2009 On August 29, 2009, Yamauchi joined the World Car Awards team for the eighth race of the
VLN series at the
Nürburgring, piloting an SP8-class
Lexus IS-F. He clocked a fastest lap of 10 minutes 9 seconds, which was the best in the team, and their team recorded a class win. He returned to the Nürburgring track as one of the four drivers of Team
World Car Award participating in the
2010 24 Hours of Nürburgring and finished in 4th place in the SP8 class. Yamauchi competed as one of the four drivers of the No. 96
Spoon Sports FD2 Honda Civic Type R during the
25 Hours of Thunderhill in December 2009, which was his first time driving in a road course in the United States. His co-drivers included
1996 JTCC champion
Naoki Hattori and Spoon founder
Tatsuru Ichisima. The team had to spend almost an hour in the pits during the race as they had to modify their exhaust to comply with noise regulations and incurred a penalty for improper fueling. Despite this, the car ran without issues, and after completing 617 laps, finished 7th out of 17 cars in its class and 23rd overall out of 66 cars. Yamauchi took part in the
2011 24 Hours of Nürburgring as one of the four drivers of the No. 71 Schulze Motorsport
Nissan GT-R N24. The team finished the race in 36th place overall, achieving a victory in the SP8T class after overcoming several technical problems, and beating competition from drivers including
Johnny Herbert and
Mark Blundell. For the
2012 24 Hours of Nürburgring, Yamauchi returned to Nissan, driving the No. 123 GT-R with
Lucas Ordóñez. He finished 1st in the SP8T class, and 30th overall, though the SP8T class that year only consisted of two cars, both of which were Nissan GT-Rs. Yamauchi joined the SP9 class for the
2013 24 Hours of Nürburgring, driving Schulze Motorsport's Nissan GT-R Nismo GT3. The team managed to lead the first qualifying session overall for over 40 minutes, but multiple reliability problems in the race put them down to 165th place overall at one point. They recovered to 135th position overall at the checkered flag. For the
2014 24 Hours of Nürburgring, Yamauchi again drove Schulze Motorsport's Nissan GT-R Nismo GT3 with
Jordan Tresson, Tobias and Michael Schulze. The team were able to have a much cleaner race than in the previous year, and impressively finished 14th overall out of 165 cars. The
2016 Nürburgring 24 Hour race saw Yamauchi make the switch from Nissan to BMW, where he piloted the No. 101 Walkenhorst Motorsport M6 GT3, and finished 22nd overall. ==Racing record==