2023 BMW 3.0 CSL Marks 50 Years Of M At BMW Welt In Retro Fashion

The most expensive new BMW ever also happens to have the most powerful inline-six engine ever put in a production car by the M division. You’ll have to pay an eye-watering €750,000 for those 560 Bavarian-bred horses, channeled to the rear wheels via a six-speed manual gearbox.