I don't know about extreme jealousy, but the classic Jags (i.e. pre S type and X type) are all exquisite looking cars, and women are particularly receptive to those stunning flowing lines. The word is 'sexy', I think. By the same token, Mercs and BMWs, superbly engineered as they are, just don't have it - they're clumsily drawn and unsubtle - designed to be imposing rather than beautiful, and there's a critical difference (shame the new XJ lacks the XJ40's lovely graceful lines). Still, as anyone who's had a classic Jag of any description will tell you, they create an almost universally positive reaction in passers by (the bits falling off haven't spoiled their pure aesthetic appreciation) and other drivers - except those in German cars who, who IMHO are an aggressive and humourless bunch (don't signal, hang half an inch behind you at 80MPH, you know the sort...).