Karin

Karin is an automotive company that produces cars such as:
 * Dilettante
 * Futo
 * Intruder
 * Sultan
 * Sultan RS

Their name, as well as the real life analogues for the two cars, indicate that they are likely based off the real life manufacturer Toyota. However the Sultan RS, a tuning version, is tune like a Subaru. The name might be a parody of Kia (being both spelled similarly and being girls' names), the logo also bears resemblance to their corporate logo (mainly the top left tip of the 'K').