Not a good analogy.....If you want to soup up a Taurus then you buy the Taurus SHO. The Glock is the Taurus SHO of the gun world
Then you should just buy a SHO to begin with.
The Glock is just the standard Ford Taurus, though. Not the SHO. That would be the XDm.
The P99 would be the BMW M3 of this analogy, however.