Aston Martin Rapide S undergoing testing on the 'Ring

Word on the street is that Aston Martin is developing a faster, more powerful version of its Rapide four-door, a rumor fueled by new spy shots snapped on Germany's infamous Nürburgring. The camouflaged prototype pictured above appears to pack a revised front end and tail, with larger intakes up front and a lip spoiler and reshaped bumper around back.

Underneath the revised fascias, sources expect to find the 510-horsepower V12 from the DBS to upgrade from the DB9-spec 470-hp mill already in place in the "standard" Rapide. Couple this with carbon-ceramic brakes and revised suspension, and the Rapide S is starting to shape up as a real barnstormer.

In short, if the existing Rapide is a four-door DB9, expect the Rapide S to come in as a four-door DBS – suitable for carrying 007 and not just one, but three Bond girls to their next mission or exotic locale.