@ Knight-rider Michael: If you give us the meaning of the above terms in English (AE or BE), we'll give you the meaning in German . . .

Is that a deal to be struck ?!? . . .

Das sind die 'Superautos' aus der Fernsehserie 'Knight Rider' und heissen in der deutschen Fassung genauso. Siehe auch: http://de.wikipedia.org/wiki/Knight_Rider

from memory:

K.I.T.T. = Knight Industries Two Thousend
K.A.R.R. = Knight (Industries) Automated Roving Robot

You can translate that word for word yourself, but I believe in German the names were not translated.