Reincarnation: a religious concept that the soul or spirit, at biological death, moves on to a new life in a new body that may be human, animal or spiritual depending on the moral quality of the previous life’s actions. If that quality has been good, upon reincarnation, you move to a higher form.
SHO engines, when their Taurus “host” rusts or otherwise expires, are usually reincarnated in their next life to a higher form. Be it Mustang, 240Z, Esprit, or better.
Except this time, where the SHO engine takes a major step down into a Mercury Topaz. What did it do in its first life to deserve this cruel fate?