Take this with a grain of salt, from a 52 year old guy - who's chuckling at your question.
It may matter when you are young, but quite frankly - you and what you are is what's hot or not. And it won't matter what car you drive.
The car - it's just an icon you happen to own. If it's a nice icon, it says something about your tastes. If you were the one who rebuilt it - it says something about your grit, determination, and abilities.
But it neither case does it make you hot or not.