Mashin Chaser was feature in Kamen Rider Drive in 2016. He also appeared in Kamen Rider Drive Saga: Kamen Rider Mach which aired in 2016.
Chaser was the original Kamen Rider Drive (Kamen Rider Protodrive). He became the Grim Reaper after he had his memories wiped by the Roidmudes. He later regains his memories and becomes Kamen Rider Chaser.