Triumph hubcaps...and swing axles and positively-cambered front wheels! Are you sure it's not a Triumph underneath? ![Grin ;D](https://www.autopuzzles.com/forum/Smileys/default/grin.gif)
It shouldn't be, but it may well be that someone has built it up himself around Triumph parts.
My source doesn't actually say what the basis is, but there is a basis for this car and Triumph was not it as a rule.