Audi's flagship SQ9 will compete with the Mercedes GLS and BMW X7.

Audi's upcoming SQ9 flagship SUV has been spotted undergoing testing in Europe, signaling its potential debut next year.

Positioned as a luxury performance-focused three-row crossover, the SQ9 aims to challenge high-end competitors like the BMW X7 and Mercedes GLS.

The prototype showcases distinctive design elements, including a large mesh grille, split lighting units, expansive greenhouse, and Ford Mustang Mach-E-inspired door handles along an upward-sweeping beltline.

The rear features a four-tailpipe exhaust system, boomerang-shaped taillights, and subtle design differences from the Q7, such as longer rear doors and a bumper-mounted license plate recess.

Expected to ride on the Premium Platform Combustion, the SQ9 may feature a twin-turbo 4.0-liter V8 engine alongside plug-in hybrid variants, reflecting its flagship status with cutting-edge performance and luxury features