The point is, the name is overrated. Think of the Wii, how people hated the name. A few months on, who cared? They wanted to buy the widget, and never mind what the widget is called. The name does not define your product; the product defines your name. Anything else is just voodoo.
Paying for someone to name your car model "J30"? Oh come on.
This reminds me of the (semi-apocryphal) story of the creation of the Euro symbol. A European Commissioner, Jean-Pierre Malivoir, was given a big pot of money to hire a designer to come up with a proposed symbol for the new currency. He thought it was a total waste of money, and sat down and came up with the early version of what is now the Euro symbol himself.