Jim Douglas, portrayed by Dean Jones, is a seasoned race car driver looking to reclaim glory alongside his rather skeptical and quirky mechanic, Wheely Applegate. They find themselves on an exhilarating adventure in the fictional Trans-France Race, setting off from the vibrant streets of Paris to the glamorous backdrop of Monte Carlo in a spirited 1963 Volkswagen Beetle named Herbie, the "Love Bug." This duo aspires not only to make a comeback but also to outplay their competition during the thrilling event.
The race features fierce competitors, including the formidable Bruno Von Stickle, brought to life by Eric Braeden. As a dark-haired German driver well-versed in the "European Racing Circuit," Von Stickle drives a powerful vehicle—a Porsche 917 clone, adorned with the colors of the German national flag and the number 17. His skills and experience make him a prominent threat both before and throughout the race.
Their rival Claude Gilbert, a mustached French driver known for his striking blond hair, is no less intimidating. Known for his sleek black De Tomaso Pantera, Gilbert’s car boasts white stripes and the number 66. His prowess on the track is equally matched by Von Stickle until misfortune strikes him during the later stages of the race.
Amidst all the intense competition, there’s Diane Darcy, skillfully portrayed by Julie Sommars. This striking strawberry-blonde American is not just the sole female participant in the race but is also characterized by her icy demeanor and feminist spirit. Diane's first encounter with Jim is marred by confusion as she believes Jim's car, Herbie, sabotaged her racing chances due to its sudden infatuation with her own vehicle. Unbeknownst to her, the love affair here is mutual—Herbie not only admires her magnificent powder-blue 1976 Lancia Scorpion, accentuated with yellow and white stripes but also has developed an unusual affection for it.
As the race unfolds, Diane experiences a harrowing crash into a lake just shy of the finish line. In a moment of sheer bravery and with Herbie’s help, Jim saves both the car and Diane, leading to a poignant shift in her perspective toward both Jim and Herbie. Witnessing Herbie’s loyalty as he attempts to revive the Lancia, Diane becomes a believer in the enchanting existence of sentient cars.
Despite her exit from the race, her faith in Jim and Herbie rekindles—a phenomenon that signals the strength of their bond. With newfound determination, Jim and Herbie give chase to Von Stickle through the bustling streets of Monte Carlo, culminating in a nail-biting showdown. In a twist of fate, the little Beetle outsmarts Von Stickle, demonstrating agility by driving upside down in the infamous tunnel of the Formula One racetrack and seizing victory for the historic 20th time of their career.
However, the plot thickens as two thieves, Max and Quincey, execute a daring diamond heist, concealing the treasured Étoile De Joie in Herbie's fuel tank. Unbeknownst to them, their getaway car is quite unlike any ordinary vehicle; Herbie's sentience complicates their plans, leading to a series of laughable blunders as they attempt to reclaim their loot while simultaneously failing to control the mischievous car they've unwittingly chosen.
Their escapade attracts the attention of the French police, led by Inspector Bouchet, played by Jacques Marin, and his subordinate, Detective Fontenoy, interpreted by Xavier Saint-Macary. Despite Inspector Bouchet’s lofty plans to keep Herbie under wraps, the detective inadvertently manages to unravel the heist's true intricacies, resulting in the former being captured.
As emotions rise and love blossoms, Jim and Diane embark on a budding romance, while Wheely pairs up with a captivating trophy girl from Monte Carlo. Meanwhile, the affection between Herbie and Giselle, Diane's Lancia, becomes an endearing highlight, marking a whimsical conclusion to their thrilling escapade in the Trans-France Race.
