The 535i also has less grip than the A6, which isn't surprising with its Goodyear Excellence run-flat tires (245/40R19 front, 275/35/R19 rear), which aren't known for their adhesion. Of course, this yields predictable results during instrumented testing, where the A6 goes through the slalom at 67.2 mph to the 535i's 64.5 mph. Skid pad results are closer, as the Audi manages 0.90g versus 0.88 g for the BMW.
I've Lost My Way
Without question, this 2012 Audi A6's electric steering is better than the setup we had in our long-term S5. The A6's steering is still overly light at low speeds, but the effort level increases in a more linear fashion when you start barreling down back roads. The steering ratio matches the quick reactions of the chassis, too. Still, we would prefer even more feedback.
Similarly, the steering feel that once distinguished the 5 Series from all other midsize luxury sedans is gone. Instead, this car has precise, electric power steering with a logical build-up in effort as you turn the wheel off-center. And that's it. Nothing wrong with it, but nothing special about it either.
Braking performance also inspires ambivalence. Pedal feel is soft in the A6, but it stops from 60 mph in 111 feet. The brake pedal is pleasantly firm in the BMW 535i, but with those Goodyears, it can't do any better than 118 feet.
Back on the Highway
We expect cars in this class to spare us every discomfort. But that's no easy task with 19-inch wheels, low-profile tires and notoriously lumpy L.A. freeways.
Although both sedans have compliant rides, there's more impact harshness than we'd like, particularly in the A6, which isn't available with adaptive dampers. Forgoing the optional Sport package suspension calibration might help, but it would make the A6 less fun through corners.
Inside, both driver seats are comfortable and supportive, but the BMW's chair is wider with an extendable seat-bottom cushion, and is therefore more accommodating for 6-foot 200-pounders.
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