Foggy weather in free run, time attack or vs. mode:
Select the desired mode and choose rain. At the track
starting point selection hold L2.
Snowy weather in free run, time attack or vs. mode:
Select the desired mode and choose rain. At the track
starting point selection hold L1.
Stormy weather with thunder free run, time attack or vs. mode:
Select the desired mode and choose rain. At the track
starting point selection, hold R2.
Turbo, Natural Aspired engines
Drive more than 2000 km or 1242 miles on ONE car.
Now you can switch engines on that specific car.
or
Finish the game with 100% completion with any car.
Boost:
Go to map screen. While you select the desired area Hold Select.
Release Select button, when the auto-pilot engages. Begin a race,
and you can use a boost now. Note: You can only do this with
cars without turbo.
Swapped Natural Aspired engines available
L4, L6, V6, V8, and Rotary engines.
Swapped turbo engines available
L4, L6, V6, V8, F4, F6, and Rotary engines