The phrase "a massive driver of" is correct and usable in written English.
It can be used to describe a significant factor or influence that contributes to a particular outcome or phenomenon.
Example: "The rise of social media has become a massive driver of change in how we communicate."
Alternatives: "a major contributor to" or "a significant force behind".
That doesn't mean the drop isn't meaningful, since autos are a massive driver of business in the U.S.
They are a massive driver of the brands we buy and that would not be the case unless they answered some core need in us.
Climate change is likely to be a massive driver of forced migration over the next century, as densely populated, low-lying areas become unliveable because of rising sea levels, inundation, and salinity.
Natasha Leite Keep in mind the impact of drugs: The global "war on drugs" is a massive driver of crime, violence and insecurity, not only in the Americas but increasingly globally.
Food-insecurity is a massive driver of this problem.
Demand with no end in sight is a massive driver of franchise success.
So, too, does user feedback – we're always responding to the expectations of the users, and that's a massive driver, going forwards".
Goal 8: Economic Growth and Decent Work A goal many businesses have identified as key and can contribute to simply by virtue of their existence, providing employment and paying taxes, etc. Entrepreneurs and SME's are massive drivers of economic growth and development especially in emerging countries but with 50% of SME's lacking access to finance this significantly hinders their growth.
The jet stream, a massive but mysterious driver of our weather, usually passes along a steady path from West to East across the Atlantic - sometimes a bit to the North of us, sometimes a bit to the South.
However, having grown into dozens of cities worldwide, the company also works with a massive web of drivers, and these people are not Uber employees.
America has a massive shortage of truck drivers.
