05-01-2020· But you might be surprised to learn that they're not all lining up for the latest Tesla release. According to TrueCar data, Gen X is buying the most EVs, at 39.8%, followed closely by Millennials at 34.9%. However, Boomers are actually the ones buying the greatest mix of all green vehicles, which includes Electric, Hybrid, Plug-in Hybrid, and Fuel Cell vehicles.