The drug is MDMA, or Ecstasy. It is referred to by the characters as "molly" and "molecule," they are eating the powder before it has been pressed into a pill, and is presumably pure. Andy explains this to Lucy in a later scene.
Yes. It is made by a company called AFX Helmets. The helmet seen in the movie was a prototype provided before it became available for sale, and was, at that time, the first pink helmet.
The car model was made by Geo, which has been discontinued.
