He won the Japanese motocross national championships in the 90cc and 125cc classes for Kawasaki in 1968 before switching to cars as a Nissan factory driver in 1969.

[3] Driving a Tyrrell-Ford for Heros Racing, he ran as high as fourth, but retired having used up his tyre supply.

Like his compatriot, Masahiro Hasemi, he continued his career racing for Nissan, driving a Skyline GT-R to win the Japanese Touring Car Championship in 1990.

[11] Hoshino retired from racing in 2002 and now continues to run his own Super GT team and his own Nissan specialised aftermarket parts company, Impul.

His son, Kazuki Hoshino, currently competes in Super GT driving for GAINER in the GT300 class.