Stewie from Family Guy
Of course, Stewie will demand nothing less than utter submission from you as a driver, but his voice will without doubt, cut through the fog of noise coming from the radio. Expect to be told to, "Do what I say." Just be aware that this may not be the voice for you if you happen to have little ones in the car. Stewie does tend to swear when you miss a turn.
A sexy voice with that amazing accent. If you need to class up your car then give Sean a try. His diction is very Bond style, and he also gives you some interesting tid bits along the way. If you are annoyed by any extra chatter, then you are going to have to skip on this suave brit.
OK, so Homer is not as classy as Sean, but he will get you laughing. If you want to hear, "Doh", every time you make a wrong turn, then give this a try. You will not be disappointed. Just be aware that this is the classic Homer voice. The one that you would have heard if you saw The Simpsons when they were part of The Tracy Almon Show, not the modern day Homer you may be used to.
The voices of Portal will be brought to your car. If you are a hardcore gamer then this is a voice that you will enjoy without too many special effects. For those of you who have not played a lot of Portal, think of a high pitched and stilted robot voice.
Bring the king into your car. Sure, some of the older users will appreciate this as it is, but younger users may enjoy the voice on an ironic level. Clearly younger Elivs, not the older one. Be aware that he does sing every once and a while, and will refer to you as "Mama." If this bugs you try another voice.
Captain Jack Sparrow
A solid voice to sterr your ship by. Just don't take his advice about the rum. Cops won't believe you when you tell them that the captain told you to do it. This is one of the best parody voices out there, and it will sometimes sing you sections of "A Pirates Life for Me."
A classic car voice in you car. Anyone who came of age in the 80's will enjoy this title. This voice happens to be customized. If you give it your name it will call you by it when you start up the GPS.
One sexy voice for one sexy car. Just don't let her talk you into anything too naughty. Just be aware that she can be more than a little bit wordy. If you need to drive in tight spaces, say Manhattan, her long diatribes may not be the best choice.
Optimus Sub-Prime is a voice that is the little brother of Optimus Prime. Not quite the copyright voice, but similar to it. You will enjoy the similarity. It is a bit more gravely and yet, high pitched. Not a good option if you get headaches easily.
Sebastian is your suave and sexy voice. Think of him as your personal major domo, and you will not be disappointed in this selection. He is a UK voice, so if you choose him be ready to hear about getting on the roundabout and other terms that may take some adapting to as a US driver. Nonetheless, he is very soothing.