The QuadSport Z400 was first introduced in 2002 as a high performance sport ATV featuring running capability delivered with it’s liquid-cooled DOHC engine the first in its class and other advanced designs, along with cutting-edge styling. As soon as it appeared on the market, the QuadSport Z400’s high performance quickly won wide popularity; the model presented to many customers around the world the enjoyment of ATV riding, from sport rides to competition use. The QuadSport Z400 became, at the hands of Team Suzuki/Yoshimura rider Doug Gust, the first 4-stroke ATV to win the ATVA Pro class championship.