Honda S2000: 
Defeat all the cars from The Four Devos team at the
end of quest mode to complete the game. The Honda 
S2000 may be bought at the car shop in the next 
game. Additionally, the Rival 138-141, Type-515, 
and Type-AP1 cars will be unlocked. 

Porsche 911: 
Unlock the Honda 2000. Defeat the other death cars
in quest mode and complete the game. The Porsche 911
may be purchased at the car shop in the next game. 

Free car: 
Earn enough money to purchase the desired car. Press
Y when selecting a license plate number to get a 
random selection. If all numbers turn out to be "7",
that car will be free. Press B for another attempt 
if those numbers did not appear. Answer "No" when 
asked if you want the car to start again. 

Full speed in quest mode: 
Press Y at the "Assist Shifting" menu. The player 
and opponent car can reach full speed after a win
or lose battle in quest mode. 

Enable rival pointers in quest mode.: 
Press L or R at the "Assist Shifting" menu. 

Alternate replay view: 
Hold L + R and press A to select the "Replay" 
option at the post-race screen to view the replay
from behind your car.