Abstract: Driven by the significant demand for space control mechanism in the development of national space field, topology synthesis method for the hybrid mechanism based on finite and instantaneous ...

Across the range, the A4's quality and materials are excellent. Its spacious cabin is full of tech, although the lack of standard driver assist features disappoints considering the price.

Sport and luxury are showcased in the A4, Audi's best-selling sedan. The A4 has been in production since mid-1990s, and the current B9 generation went on sale for 2017. The car combines upscale ...