I always understood that Cat B could never return to the road, and that's what it says at all the sources I saw while Googling? E.g.:
i wouldnt bother with google, there alot of crap on there, you just take a car for a vic check, i know someone who's does a fair few of them then ships them overseas with logbook as its alot easier
cat b puts alot of people off the car but if its desirable like a new golf/ audi tdi they always sell, lots on ebay
you cant buy the b's without a licence, but what many ppl with contacts abroad are doing is gettin a "licence" lets say in lithuania then using it to buy them over here its why bluecycle only lets uk based breakers buy there cat b's as its screwing the mkt up, copart dont give a toss, as you can buy cat b's from there US site just like in the uk
for example this audi;
is a b, 2011, 11reg! it will fetch £4-5k+ worth repaired £26k+ but if you was a uk breaker u wouldnt b able to salvage parts to cover the sale price let alone make a profit, every panel is smashed then the roof chopped, it'll go abroad and be "put back on the road" also sold for FULL mkt price as will b hpi clear