What was the rarest car you ever had ?

Had 2 1966 D/Darts at the same time. Still have one -- Ted Spehar's old "Politician" race car.

I also have a 1964 Belvedere, 2 door hardtop. It has a 426 street wedge, 4-speed and a red bench seat interior. It's white with a red painted roof. It's my retirement project.