Stop speculating. I'm about to edit in the DEFINITIVE answer to this query.
Right. "Pearlescent" doesn't mean it changes colour. A pearlescent finish just adds a certain depth to the colour. The colour-changing TVRs have "chameleon" or "reflex" paint.
The chameleon cars/colours are:
TVR Tuscan (Reflex Purple, Reflex Spice, Chameleon Orange, Chameleon Blue)
TVR Cerbera Speed 12 (Reflex Purple, Reflex Spice, Chameleon Orange, Chameleon Blue)
There's also a Honda NSX which comes in a similar style colour, called "Boulder Opal Blue". It's a Honda NSX TypeSZero which can ONLY BE WON at the Amateur Type-R Meeting. Be careful though - you can only win it ONCE and it comes in two colours - "Boulder Opal Blue" and the imaginatvely-titled "Purple".