[Kurona]

Drive also had the bikes owned by its non-main Riders appear an awful lot. I can scarcely remember an episode where Chaser didn't show up on his bike; which is funny because I always found that ironic when it was very clearly designed for Mashin Chaser...

Regardless, I think what really helps Drive's case is that even if the car doesn't appear and doesn't get used quite that much, it's still integrated into the theme of the show. Drive is 100% based on cars in every single one of his forms; his tires are all shot out from the Tridoron; and his final form is literally him wearing the Tridoron. Even when it's not there (and, really, I could have done with a few more of those signature kicks...) its presence is always felt and it's always embedded into the show in a way no other Rider Machine since Kuuga's is. It's actually important and relevant to the show and the rider rather than just being a prerequisite somehow crammed into the gimmick toy.