FIRST LOOK: BMW M4 CSL: The Fastest M Car Ever | Top Gear

It's finally time for the return of the CSL badge, one that has only been worn twice before. Enter the BMW M4 CSL: 100kg lighter and 39bhp more than a standard M4, with added ducktail spoiler reminiscent of its E46 cousin. Top Gear Magazine's Ollie Marriage is joined by BMW M's Head of Engineering Dirk Hacker for a look around the £125,900 track weapon, BMW's fastest production car to ever lap the Nürburgring... Subscribe to Top Gear for more videos: Chapters: 0:00-0:52 Intro 0:53-1:21 CSL vs GTS Badge 1:22-4:27 Q A with Dirk Haker 4:28-5:47 Weight Saving 5:48-6:15 Engine 6:16-6:35 Startup and Sound 6:36-6:50 Gearbox 6:51-7:16 Grille and New M Badge 7:17-7:44 Wheels and Brakes 7:45-8:22 Aero and Ducktail Spoiler 8:23-10:08 M Cars History Lesson 10:09-10:56 Outro