I had a ten-speaker Dynaudio in-car system in my last car, and for me it was totally worth the �3000 premium (without navi).

I'd do that sort of thing again like a flash, although I'm not sure when I will next do the economically foolish thing of buying a brand new car...

Ex-moderator
Sitting room: dCS Network Bridge, 818v3, HD621, 8kSE
Library: dCS Rossini Apex DAC/Clock, Clearaudio Performance Wood, Audio Research PH2, Mjölnir KGST, Mjölnir PureBipolar
SWMBO Room: 210, D33
Kitchen: Meridian MS200, Genelec 6010 actives
Mobile: Audioquest DragonFly Copper, Sennheiser IE600
Desk: Merging Anubis
Server: Roon/ROCK/NUC
Headphones: Stax SR-X9000, Stax SR-007, Stax SR-404LE, Audeze LCD-X...

Oldest audio file: 1889 Edison cylinder