not sure about the pacer. but on a gremlin X you could get a 401 V8. dont think you could order that with the pacer.. i happen to love the way both of the bikes in question look.. although would probably take the buel... Vtwin sound. and now a collectors item.. LOL.. somthing the busa will probably not be for along time to come.
shawn
Busa will never be collectable, too ugly and mass produced. In fact if you think of what bikes are they are often rolling art.