Koenigsegg called it the “Flower Power” car. Back in 2006, when most supercar builders were focused on ever-increasing muscle, the Swedish automaker decided to combine output with sustainability via ...

There's no such thing as a common (or inexpensive) Koenigsegg, but this example is rarer than most. A CCXR prototype from 2006, it was one of the earliest hypercars the company built to use biofuel.

2025 Alfa Romeo 33 Stradale, a limited-production supercar, featuring a 630 horsepower twin-turbo V6 engine and a top speed of 207 mph. Koenigsegg CC Prototype, the first Koenigsegg, built in 1996, ...

One of these was a stealthy, satin-black prototype used to help fine-tune the biofuel technology. Now, after years of being tucked away in storage in Norway, chassis No. 7031 is heading to auction at ...