Fast Transit is the Hot Wheels mainline mini-series that turns public transport into speed machines. Buses, trams, subway cars and delivery vehicles get the full Hot Wheels treatment — chopped, slammed and blown — and the result is one of the most distinctive subsets in the annual Hot Wheels mainline guide. Which vehicles appear in Fast Transit? Recent years have brought castings like Electro Silhouette (a neon-lit city bus), Aero Lift, Loop Coupe and the cartoonish Speedy Pérez delivery truck. The mix blends fantasy transporters with just enough realism to sit comfortably next to licensed castings on a display shelf. Because the series rotates its roster every year, the year-by-year…