Sure, here are fifteen unknown facts about Cadillac.

1. Cadillac was named after the French explorer Antoine Laumet de La Mothe, sieur de Cadillac, who founded Detroit in 1701.

2. The Cadillac logo is based on Antoine de la Mothe Cadillac’s family crest, though its authenticity has been debated.

3. Cadillac was the first car company to mass-produce vehicles using interchangeable parts, which revolutionized the auto industry.

4. In 1915, Cadillac introduced the first mass-produced V8 engine, a significant advancement in automotive performance.

5. Cadillac was the first car manufacturer to use a keyless ignition system in 1916.

6. The company introduced the first fully enclosed car, the Model Thirty, in 1910.

7. Cadillac’s 1957 Eldorado Brougham was one of the first cars to offer air suspension, a technological innovation at the time.

8. In the 1930s, Cadillac developed the world’s first synchronized transmission, which made shifting gears smoother and easier.

9. The 1964 Cadillac DeVille was the first car to feature a fully automatic climate control system called Comfort Control.

10. Cadillac introduced the concept of the “tailfin” in car design with the 1948 Cadillac models, influencing automotive styling for decades.

11. The 1992 Cadillac Seville STS was one of the first American cars to feature electronic stability control.

12. Cadillac was the first U.S. manufacturer to offer adaptive headlights in 1959, which pivoted with the steering wheel.

13. The Cadillac Escalade, introduced in 1999, quickly became a status symbol and a popular choice among celebrities.

14. Cadillac’s Art and Science design philosophy, introduced in the early 2000s, aimed to blend aesthetic appeal with cutting-edge technology.

15. Cadillac has a rich history in motorsports, including winning the prestigious 24 Hours of Le Mans in 1950 and making a strong return to racing in recent years.