We’ve never seen Porsche bring out a historic model at a major auto show. However, well-known German tuner RUF usually has at least one vintage Porsche on display in its booth. This year, the company is showing off an early 911 Targa next to a new 2015 Targa.

The Targa came to life because Porsche feared that the United States government was going to ban full convertibles for safety reasons. It was introduced in 1967 along with a clever and surprisingly accurate ad campaign whose slogan was “some day, all convertibles will have a roll bar.”

Ragtops were evidently not made illegal in the United States but the Targa body style became an instant hit both in the U.S. and in Europe. The rest, as they say, is history.