Secret Car:Keep racing against your opponents until a sign appears saying "HERE COMES A NEW CHALLENGER." Beat the challenger to receive one part of the secret car. Continue to do this until you've collected all four parts.

Here is where you will find them:
DESIGN = NAPALMAN'S STAGE
WHEELS = QUICKMAN'S STAGE
BOOSTER = ICEMAN'S STAGE
BODY = GUTMAN'S STAGE
***The locations above work for all characters except for Gutman, Quickman, Iceman, and Napalman.

Quick Start
For a quick start, use Quickman's design (the V-like item in his car.) Hold X after the first light