When Audi announced the RS5 Cabriolet would be coming to the US back in January, we extrapolated from the price tags on other members of the A5 family already available Stateside and figured it would cost around $77,000. Well, we were a bit off. But only by $900. Audi of America has now revealed official pricing for the drop-top muscle machine, pegging it at $77,900. That makes it $8,600 more expensive than the S5 cabriolet, and a good $9,200 more than the BMW M3 convertible, but a whopping $36,750 cheaper than the M6 cabrio.

We'd compare it to the C63 or E63 AMG convertible too, only Mercedes doesn't make those - only the SLK, SL and SLS, and those are two-seat roadsters. The RS5 Cabrio is a four-seater, packing a 4.2-liter V8 with 450 horsepower and 317 lb-ft of torque, channeled to all four wheels through a seven-speed dual-clutch transmission to hit 60 in 4.9 seconds. That places it in between the 5.1-second M3 and the 4.3-sec M6 drop-tops. What the $77,900 sticker does not include are the carbon-ceramic brakes (available only at the front where they matter most). That package will set you back another $6,000.