Most common car on the road?

There's no single definitive answer to the question of the "most common car on the road" globally. The answer varies greatly by country and region. Data collection on this is also challenging.

However, in many *individual* countries, models from Toyota (like the Corolla and Camry) frequently top the lists. Globally, it's likely a Toyota model holds the title, but pinpointing the exact one is difficult without a massive, worldwide, and consistently updated vehicle registration database (which doesn't exist).