These are available to all players via Character Select or Appearance Modification Stations.» (dulfy.net)
Spending an extra $ 6200 (above the price of a 370Z with the optional sport package) for the NISMO edition seems reasonable until you know what we learned at the test track: the long slate of chassis and appearance modifications don't actually improve acceleration, cornering, braking, or top - speed performance. (automobilemag.com)
For some more appearance modifications I put 2003 Mach 1 wheels on and a retro Mach 1 interior. (mustangandfords.com)