Unveiled in 1984, the Ferrari Testarossa was among the defining automobiles of its decade.

Pininfarina’s extraordinarily wide, low body, long straked side intakes, and broad rear grille gave it a presence unlike any Ferrari before it.

The design was as purposeful as it was dramatic: the intakes fed radiators flanking the mid-mounted engine, while the broad rear bodywork housed the 4.9-liter, 48-valve flat-12.

Paired with a five-speed manual transaxle, this remarkable engine gave the Testarossa the performance expected of Ferrari’s flagship, together with the composure and refinement of a true gran turismo. Few cars are so closely identified with the 1980s, yet the Testarossa’s lasting appeal extends well beyond its familiar image.

Its naturally aspirated 12-cylinder engine, gated shifter, and unexpectedly accommodating cabin reward the driver over distances both short and long.

The Pininfarina styling remains extraordinary: a narrow nose opening into sculptural rear quarters, with...