The Mondeo/Fusion's F-R balance is actually worse than the A4's. Since the engine in the Fusion is mounted transversely with an inline transaxle the majority o

The Mondeo/Fusion's F-R balance is actually worse than the A4's. Since the engine in the Fusion is mounted transversely with an inline transaxle the majority of the weight is in front of the front axle. The A4 has a longitudinally mounted engine with the transmission and PTU (output to the rear wheels) behind it, which means the weight straddles the front axle. Audis used to be extremely nose-heavy but their engineers have spent a lot of effort over the past few generations to move the drivetrain's center of mass backwards. They also offer things like differentials with electronically controlled multiplate clutches that allow torque to be transferred to the wheel(s) with the most traction in a matter of milliseconds to improve traction in cornering or in wet/snowy conditions. So "badge cachet" is definitely not the only difference.