Audi Bht engine
The 6.0-liter 12-cylinder engine Audi A8 W12 BHT was produced from 2003 to 2010 and installed in the expensive versions of the A8 sedan with the D3 body, including the extended version A8L. Other variants of this engine, labeled BTE and BSB, were also mounted in this model. The EA398 series also includes engines: BDN, BRN, and CEJA.