I know many people who track their Porsches who would not consider themselves "Porschephiles". They would consider themselves "autophiles". The Porsche is just their tool of choice right now, sometimes just for that day, as they often have other sporty vehicles that they drive and track too. Several that have Porsches but never track them as well, but track other vehicles. Would that make them a lesser autophile or Porschephile?
Just about everyone who tracks a Porsche is a Porschephile