It’s been almost two decades since BMW unleashed the E39 M5 on the motoring public, and the sport sedan segment has chased its ghost ever since. Not long after the BMW was crowned mythic perfection, Cadillac made a substantial shift in its development focus to court younger, more performance-minded buyers.

Since then, Cadillac has generously pilfered the Corvette program parts bin to move the brand away from the retirement home and onto America’s non-existent Autobahn. In the meantime, BMW’s M Division has set its playbook on fire and begun heaping content onto its performance models.

When the second generation CTS-V broke the production sedan lap record at the Nurburgring in 2008, it became clear that the conversation was really starting to change.

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