Some elaborations:
First, Scarface: The World is Yours (hereafter abbreviated to 'TWiY') is a 'GTA clone' only in the genre; do keep in mind that GTA: Vice City itself is heavily influenced by
Scarface.
Secondly: TWiY is not a mere recounting of the movie; rather, it's a 'what if?' that diverges from a point at the very end of the movie.
Those points laid down, there are several improvements over the GTAs; various articles (at IGN, Gamespot, et cetera) go into these in depth, so I'll just share two big ones which illustrate the truth in the subtitle:
- Once you have a driver on retainer, you can have any purchased car brought to you; the boat pilot does the same with boats. Note that two vehicles (the floatplane and limo) aren't driven - rather, they serve to 'teleport' you about the map.
- Once your retiune includes an arms dealer, you can order hardware over the phone, and it'll be delivered in your summoned car or boat. Note that this 'weapon locker' can also be used to stash weapons you find that aren't yet available for purchase (such as missile launchers)
Jam it back in, in the dark.
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