It’s been 15 years since you’ve been able to have a 911 Turbo S with a manual gearbox, and ignoring Porsche’s expensive, limited-run 992 Sport Classic, things aren’t about to change.

To mark the 50th anniversary of the 911 Turbo, Porsche has unveiled a new 992-based special edition that takes cues from historic models in the lineage. Called the 911 Turbo 50 Years, the model ...