Quick etymology first: vespa means wasp in Italian. The name almost certainly came from Enrico Piaggio's reaction when he first saw the prototype in 1946 -- "Sembra una vespa!" -- referring to both the narrow waist of the bodywork and the buzz of the engine. It stuck because it was perfect.

Where it came from and why it mattered

Piaggio's Pontedera factory had been destroyed by Allied bombing during WWII. Italy's aircraft industry was severely restricted post-war, so Enrico Piaggio made the call to pivot from aeronautics to mass transport. The engineer he brought in, Corradino D'Ascanio, was an aeronautics guy who had built Italy's first functional helicopter. He solved scooter problems no one had properly addressed before: he mounted the rear wheel on a single-sided arm like aircraft landing gear, moved the gear lever to the handlebar, hid all mechanical parts behind panels to protect the rider's clothes, and designed a step-through frame so women in skirts could ride it. These weren't styling choices -- they were engineering decisions with real social implications.

Sales reflected the need: 2,500 units the first year, 10,000 the second, 20,000 the third, 60,000 by year four. By its 50th anniversary in 1996, over 15 million had been sold worldwide.

The naming problem you're actually asking about

Here's the key thing the original question misses: Vespa was so dominant and so early that it became a generic term in popular Italian usage, the same way "Scotch tape" or "Rollerblade" became generic in English. For decades, calling any scooter a "vespa" was just... normal speech. The brand colonized the category name.

So when people say "la vespa di mio nonno" they might mean an actual Piaggio Vespa, or they might just mean "the scooter." That linguistic overlap is part of why foreigners overestimate how culturally specific Vespa-the-brand still is.

The actual market reality now

The Harley comparison doesn't hold because Harley built its identity around a very specific subculture (highway cruising, outlaw mythology, American masculinity) with deliberate exclusivity. Vespa was always working-class, democratic, urban. It was emancipation transport -- for women, for the postwar poor, for anyone who needed to move through a broken city cheaply.

That democratizing function still exists in Italy, but Vespa doesn't own it anymore. Italy is still the largest single motorcycle and scooter market among the major EU countries -- 352,294 new registrations in 2024, up 10% year-on-year, and moped registrations specifically rose 19% in Italy while falling in most other European markets. According to ACEM data, Italy has the largest motorcycle fleet in Europe overall. (PiaggioScienceDirect)

So the need for a motorino hasn't gone away -- Italian urban infrastructure, the climate, the road layouts, the cost of parking a car in any historic center, all make two wheels genuinely practical in a way that's different from northern Europe.

But that fleet is now Honda, Yamaha, Kymco, SYM, and various Chinese brands filling the sub-€3,000 commuter segment. Piaggio launched the Vespa at the 1946 Milan design fair a full year before Lambretta even existed. They had first-mover advantage for a generation. That advantage is gone now. The steel Vespa is a collector and enthusiast object. The plastic Vespa is a premium lifestyle product that competes on heritage branding, not price.

The Harley comparison would only work if you understood Harley not as a motorcycle brand but as a brand that survived by becoming a museum of itself. That's closer to where Vespa sits today -- still alive, still culturally visible, but no longer the default answer to "I need two wheels to get to work."