Kev, to be honest me too lost some interest a while back, but regained it few days after, I know how you feel, but you cannot giove up now, think of it as your "precious"!!!
Have to be said, I too talk to her, caress her, I mean if the love for a car is so deep, you'll doo anything for her, it might seem a lot o' ork to be done, but use your imagination, think ahead!!! Think how she's gonna be, even if no one can see the polished part,(who cares, you dunnit yerself, be proud of that)

DON'T GIVE UP NOW