The Audi Q8 (4M8 generation) is the flagship coupe SUV of the brand with the four rings. Based on the MLB Evo platform (shared with the Porsche Cayenne, VW Touareg, and Lamborghini Urus), it stands out with its muscular design, ultra-technological interior (dual-screen MMI system), and exceptional ride comfort, particularly with the air suspension. Although initially launched with V6 TDI and TFSI engines featuring mild hybridization (MHEV 48V), the lineup was expanded in late 2020 with plug-in hybrid versions (PHEV - 55 TFSI e and 60 TFSI e), which are highly sought after to avoid ecological penalties in Europe. While the build quality is flawless, reliability is marred by complex electronic issues and, above all, a recurring failure of the starter-alternator on the 48V systems. A facelift
The Audi Q8 is a formidable flagship, offering an exceptional compromise between comfort, design, and technology. The plug-in hybrid versions (55 and 60 TFSI e) are the most recommendable today: they avoid the ecological penalty, offer remarkable driving smoothness, and escape the major problem of the pure combustion versions. However, buying a used Q8 requires great caution. The MHEV versions (TDI and TFSI) are plagued by an epidemic of 48V starter-alternator failures, a very expensive repair. Furthermore, the impressive list of official recalls (affecting steering, suspension, airbags, and batteries) makes it imperative to scrupulously check the maintenance history. Preferably buy a plug-in hybrid model with a manufacturer's warranty or a solid extended warranty.