MAPLUS released a portable navigation device "iriver CaroNavi M3". You can install voice data of anime characters played by popular voice actors and actresses.
List of voices
(voice of a small child & standard operator's voice)
(cute girl's voice)
an (original character Laty)
Source: Gizmodo Japan
Sample voices are available in the MAPLUS website
Furuya Tohru (古谷徹): "On the right! I'm sure it's on the right!"
Ikeda Shuuichi (池田秀一): "Go ahead at an angle to the left. I won't let you regret."
Wakamoto Norio (若本規夫): "It's absolutely on the right!"
Ochiai Yurika (落合祐里香): "Maybe turn right... Yes! Surely to the right!"
Kugimiya Rie (ラティ): "The exit is over there. Shut up and get out of here!"
Ohtsuka Akio (大塚明夫): "Turn right! Don't think about anything else!"
Sawashiro Miyuki (沢城みゆき): "Hey, you have to make a U-turn soon. but what's U-turn?"