12R is back in the UK
19R is Kevin Crowder's in Texas I believe.
21R is Peter (or maybe Christian?) Glasel's car now.
I think 14R was written off following the Japan GT series crash at Sugo in 1996 that supposedly caused heavy damage to the tub, making the 'M66 MCL' car 15R instead.
I'm not in front of my own computer right now. If I think of anything else I will add it later.
>8^)
ER