Most diecast collectors I know own items from multiple manufacturers. I, too, have cars from Hot Wheels, Tomica, Welly, Minichamps, and a few other brands. But most of the time, it's best to focus on ...

For many years, I mainly focused on collecting Hot Wheels models. But I would occasionally find products from other brands that I liked. That's how I ended up with items from Schuco, Welly, Bburago, ...