In-car audiophiles: rejoice and weep, for a new king has been crowned. Or at least that's what Bentley wants you to think. It has just launched an all-new stereo system from Naim that it calls the new zenith for in-car audio. And Bentley is proud of it.Perusing the company's press release, we get more adjectives and superlatives describing it than the guy at Best Buy trying to upgrade you to gold-plated Monster cables. The Naim for Mulliner system even offers three interior design themes, letting owners choose which vocal range they want visualized. Yes, sound with sight. But you'll pay for it. Whoa, boy will you pay for it. If You Want Better Sound, It Might Have To Be Live BentleyHigh-end cars and high-end audio go hand in hand. Once you're into the price range that'll get you a condo in almost any major city, your car can come with a stereo from a company whose home audio equipment costs almost as much as the car.Bentley and Naim have been working together for 15 years, and this new system is its greatest yet. The new Naim for Mulliner system is modeled after the one created for the Batur, with eighteen speakers and two drivers to do an impeccable job of faithfully reproducing every frequency and detail... of the Bluetooth-streamed audio from your phone.BentleyIf you're into high-end audio, you already know that Naim is a signal company, not a speaker company. The British brand builds amplifiers and other components that send power to speakers created by others. In this case, the speakers come from French brand Focal (which is part of the same parent company.)Focal started with its Grand Utopia speakers with its unique M-profile cones. The driver units are hand-wound and offer 20% more cone travel than before for a broader dynamic range. Even the speaker grilles are bespoke and functional, and Bentley says they offer "26% greater acoustic transparency."Bentley and Naim worked with Dolby to add Atmos compatibility. It's the same thing theaters use to create more immersive surround sound. It also has Symphoria rendering technology from Fraunhofer (the guys who invented MP3 compression, among other things), though that's been in other vehicles since the 2014 Audi TT. We Like The Cars That Go Boom BentleyIn the Batur, this system costs as much as a brand-new Volkswagen Golf. That's £25,000 if you don't have VW's website handy, or approximately $33,000 in US currency. Since it's part of a wider Virtuoso Collection of vehicles with other interior changes and special treatments here, it's probably going to cost a lot more. But here's the thing... the upgrade isn't just about the sound coming out of the speakers. It also manages the sound bouncing through the cabin.For that not-insignificant sum, you get the stereo as well as new Dinamica finishes on certain panels to dampen sound reflections. You also get Champagne Gold sill plates, exterior badges, and even the key.The special edition is offered on Continental models as well as the Bentayga. Buyers can pick Soprano, Tenor, and Bass themes for the cabin. The first comes with linen and grey leather, light Dinamica, and walnut veneer. Tenor gets darker Stratos and Brunel hides, ceramic glaze Dinamica, and gravity grey veneers, while Bass has grey and Beluga leather with black walnut veneers.Of course, you could stick with the standard unbranded 12-speaker system, but then people might know you caved and got the cheap Bentley. If you're a middle-ground-type person, Bentley also offers a Bang & Olufsen system or a lower-spec Naim for Bentley option with the speaker counts, depending on the vehicle they're installed in.