Challenge on the Remparts

Challenge on the Remparts~ is the 50th album in the Michel Vaillant series. Published in 1988, it is intended as a celebrationary edition. The comic shows off a lot (if not all) of Vaillante's models designed up until that point, and a lot of familair faces make an appearance.

Dutch: Uitdaging op de Wallen

French: Le défi des remparts

German: Die Herausforderung der 4 Asse

Synopsis
The Vaillante family decides to sponsor and subsequently enter twenty of their cars in the Circuit des Remparts, a streetrace in which a lot of oldtimers partake, located in the city of Angouleme. And even though the family has invited their old contenders, they surmise that it will all be an easy race. 4 Aces, mysterious drivers in fantastic cars, are not planning on letting them win this race so easily though...

Cars
First Course: Endurance Vehicles
 * Vaillante 1 - Henri Vaillant
 * Vaillante Marathon - Mister Mansart
 * Vaillante Le Mans - Jean-Pierre Vaillant
 * Vaillante Marathon GT - Michel Vaillant
 * Pacecar: Vaillante GTX1 - Gabrielle Spangenberg

Winner: Henri Vaillant

Second Course: Grand Prix Vehicles
 * Vaillante Grand Prix #2 - Michel Vaillant
 * Vaillante Mystere #26- Jean-Pierre Vaillant
 * Ferrari #10 - Ace of Clubs
 * Zvesda #18 - Nicolas Narkine
 * Aston Martin #14- Chapuis
 * Novi Europ #6 - Steve Warson
 * Pacecar: Vaillante Spider - Agnes Vaillant

Winner: Jean-Pierre Vaillant

Third Course: Rally and Gran Turismo Vehicles
 * Vaillante Marathon - Nicolas Olensky
 * Vaillante Sport E - Bill Rix
 * Vaillante-Ford Rush - Steve Warson
 * Vaillante Commando - Donald Payntor
 * Vaillante Cevert - Gabrielle Spangenberg
 * AC Cobra - Bob Cramer
 * Cortina - Betty Kid
 * Torino - Ricardo Perez
 * Leader Marathon - Alain Dex
 * Ferrari Testa Rossa - Ace of Diamonds
 * Pacecar: Vaillante Junior Sport - Candida Maria De Jesus

Winner: Bill Rix

Fourth Course: Prototypes
 * Vaillante Le Mans - Michel Vaillant
 * Vaillante Daytona - Steve Warson
 * Ford GT40 - Jacky Ickx
 * Leader Genghis Khan - Ace of Spades
 * Bocar 13 - Bob Cramer
 * Ferrari - Albert Uderzo
 * Pacecar: Vaillante Ipharra - Elisabeth Vaillant

Winner: Jacky Ickx

Fifth Course: Formula 1
 * Vaillante Formula 1 1960
 * Vaillante Formula 1 1964 - Michel Vaillant
 * Vaillante Formula 1 1969
 * Lotus - Ace of Hearts
 * Matra - Jean-Pierre Beltoise
 * Ferrari - Jacques Swaters
 * Lotus Honda - Yori Yoshisa
 * Princess - Sir Whyte a.k.a. The White Prince
 * Pacecar: Vaillante Francoise - Francoise Vaillant

Winner: Michel Vaillant

Characters

 * Michel Vaillant
 * Jean-Pierre Vaillant
 * Henri Vaillant
 * Elisabeth Vaillant
 * Steve Warson
 * Yves Douleac
 * Gabrielle Spangenberg
 * Agnes Vaillant
 * Joseph
 * Ivan Drapeau
 * Jacky Ickx
 * Candida Maria De Jesus
 * Jean-Pierre Beltoise
 * Henri Pescarolo
 * Albert Uderzo
 * Betty Kid