Countless pieces that I have seen in real life and museums.
I have operated M728 CEV, M48 and M60 hulled AVLB, M48A5, M1, M1IP, M1A1, M1A1HA, M1A2, M60A3TTS, M113A2, M113A3, M106A2, M901, M981, M577, M3, M3A1, M88A1, M548, M578 VTR, M551 Sheridan, M60A1, T-59 (ride only), M-84 (Yugo T-72, ride only), M109A4, M109A5, M1064, probably others. I assist my soldiers in "exercising" (read: joyride) the various armor and wheeled vehicles in my motor pool.
I have crewed a lot in my 20 years in the Army (3 National Guard, 16+ active Army). I even got to swim an M113A2 in the Guard and an M3 during drivers training in my Cav course.