  We study four scenarios for the SCP 06F6 transient event that was announced
recently. Some of these were previously briefly discussed as plausible models
for SCP 06F6, in particular with the claimed detection of a z=0.143
cosmological redshift of a Swan spectrum of a carbon rich envelope. We adopt
this value of z for extragalactic scenarios. We cannot rule out any of these
models, but can rank them from most to least preferred. Our favorite model is a
tidal disruption of a CO white dwarf (WD) by an intermediate-mass black hole
(IMBH). To account for the properties of the SCP 06F6 event, we have to assume
the presence of a strong disk wind that was not included in previous numerical
simulations. If the IMBH is the central BH of a galaxy, this explains the non
detection of a bright galaxy in the direction of SCP 06F6. Our second favorite
scenario is a type Ia-like SN that exploded inside the dense wind of a carbon
star. The carbon star is the donor star of the exploded WD. Our third favorite
model is a Galactic source of an asteroid that collided with a WD. Such a
scenario was discussed in the past as the source of dusty disks around WDs, but
no predictions exist regarding the appearance of such an event. Our least
favorite model is of a core collapse SN. The only way we can account for the
properties of SCP 06F6 with a core collapse SN is if we assume the occurrence
of a rare type of binary interaction.
