[Correlli]

Of course it doesn't work, here's your mistake:

pawn Код:

if(modelid == 476 && modelid == 520)
{
  // other code.
}

Player can't be in the both vehicles at the same time.

Correct:

pawn Код:

if(modelid == 476 || modelid == 520)
{
  // other code.
}